{"product_id":"dji-agras-t50-oem-d12000i-rato-generator-electronic-fuel-injection-control-board-yc-dz-gr000377","title":"DJI Agras T50 OEM D12000i RATO Generator Electronic Fuel Injection Control Board (YC.DZ.GR000377)","description":"\u003cp\u003e\u003cstrong\u003eElectronic Fuel Injection Control Board | Engine Control Module | D12000i RATO Engine Build | Closed-Loop Fuel and Spark Management | Field-Ready OEM Replacement Component\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003chr\u003e\n\u003ch2\u003e🇺🇸 U.S.A. FIRST\u003c\/h2\u003e\n\u003cp\u003eAres Acres LLC is a U.S.-based authorized DJI Agras reseller supporting American agricultural drone operators with genuine DJI Agras OEM replacement parts, accessories, and field-ready inventory.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFREE \u0026amp; FAST Shipping is included for all U.S. customers.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eWe understand that every day of downtime can impact productivity, scheduling, and profitability. That's why we focus on providing fast fulfillment, responsive customer support, and reliable access to the parts operators need most.\u003c\/p\u003e\n\u003cp\u003eThe electronic fuel injection control board is the brain of this engine. It takes the crankshaft timing pulse from the ignition trigger, reads engine and air conditions, watches the oxygen sensor, and from all of that decides two things thousands of times a minute: how long to hold the injector open and when to fire the ignition coil. It also drives the fuel pump circuit and governs engine speed against a charging load that steps up and down all day. Nothing else on the machine can do that job, and nothing else fails in a way that looks quite so much like everything else failing.\u003c\/p\u003e\n\u003cp\u003eThis is the most expensive box on the engine, and it is also the one most often replaced when it was never broken. A drifting oxygen sensor, a chafed harness, a corroded ground or a loose battery terminal all produce faults that point straight at the board. Operators swap it, the symptom comes back a week later, and now they are out the cost of the board and still down a generator — which means the whole spray fleet is still waiting for packs. When the board genuinely has failed, though, nothing else will do, and having one available is the difference between a day of downtime and a week of it.\u003c\/p\u003e\n\u003cp\u003eThat is why Ares Acres keeps hard-to-find OEM generator engine components in stock and shipped fast to the U.S.A., helping operators restore full engine management and charging capability, minimize downtime, and keep their aircraft spraying when every acre counts.\u003c\/p\u003e\n\u003cp\u003eFor professional farmers, aerial applicators, and commercial drone operators, this module is the single point of control over fuel, spark and engine speed — and the single part most worth diagnosing carefully before ordering.\u003c\/p\u003e\n\u003cp\u003eAres Acres also ships genuine DJI OEM parts to Canada, with free shipping included on Canadian orders. Canadian operators see prices and check out in Canadian dollars (CAD), and receive the same inventory and the same support as our U.S. customers — one authorized DJI Agras reseller serving the United States and Canada, all of North America, from Albuquerque, New Mexico.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003e✅ DJI Agras T50 \/ T40 \/ T30 Compatibility Guarantee\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e🇺🇸 USA Compatibility Guarantee\u003c\/li\u003e\n\u003cli\u003e👍🏻 Satisfaction Guarantee\u003c\/li\u003e\n\u003cli\u003e💵 Money Back Guarantee\u003c\/li\u003e\n\u003cli\u003e📦 Same Day Shipping \u0026amp; Tracking\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr\u003e\n\u003ch2\u003e📦 Package Includes\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e1 × OEM Electronic Fuel Injection Control Board (YC.DZ.GR000377)\u003c\/li\u003e\n\u003cli\u003eOEM electronic fuel injection control board for the RATO engine build\u003c\/li\u003e\n\u003cli\u003eOEM connector interface and mounting provisions as supplied\u003c\/li\u003e\n\u003cli\u003eOEM protective packaging\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr\u003e\n\u003ch2\u003e🔧 Component Overview\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eDJI Agras T50 OEM D12000i RATO Generator Electronic Fuel Injection Control Board\u003c\/strong\u003e is the engine management module for the RATO engine build of the DJI Agras D12000i Multifunctional Inverter Generator, the ground charging generator behind T50, T40 and T30 flight batteries.\u003c\/p\u003e\n\u003cp\u003eFunctionally the board is a small engine control unit. It needs three things to work: clean power, a clean ground, and a trustworthy crankshaft position signal. From the trigger pulse it derives engine speed and the timing anchor for the whole cycle. It then computes an injector pulse width and an ignition advance for the current operating point, drives the injector and coil outputs, manages the fuel pump circuit, and watches the oxygen sensor to trim its own fuel calculation toward the target mixture. That last part is what makes the system closed loop, and it is also the source of most misdiagnosis.\u003c\/p\u003e\n\u003cp\u003eConsider how closed-loop correction hides a fault. Suppose the injector is partly clogged. Combustion goes lean, the oxygen sensor reports lean, and the board lengthens pulse width to compensate. Now the board is commanding an abnormal correction and the sensor is showing an abnormal signal — two components looking guilty while both do their jobs perfectly. Reverse it: suppose the oxygen sensor itself has gone lazy and under-reports. The board trims in the wrong direction and the engine genuinely runs badly. Same appearance, completely different root cause.\u003c\/p\u003e\n\u003cp\u003eDJI's own D12000i RATO troubleshooting guidance reflects this. Under unable to start it directs you to check that the control unit has power before anything else, and under unstable operation it directs you to inspect the DC supply and the board's fault indication. That order exists for a reason: power quality and signal integrity account for the majority of board-shaped complaints, and both are far simpler to fix than the board itself.\u003c\/p\u003e\n\u003cp\u003eDiagnose the loop, not the box.\u003c\/p\u003e\n\u003cp\u003eThe Electronic Fuel Injection Control Board governs:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDerives engine speed and timing from the trigger pulse\u003c\/li\u003e\n\u003cli\u003eCalculates injector pulse width for the operating point\u003c\/li\u003e\n\u003cli\u003eDrives the injector circuit on every cycle\u003c\/li\u003e\n\u003cli\u003eComputes ignition advance and switches the coil\u003c\/li\u003e\n\u003cli\u003eManages the fuel pump circuit including key-on priming\u003c\/li\u003e\n\u003cli\u003eRuns cold-start and warm-up enrichment strategy\u003c\/li\u003e\n\u003cli\u003eCloses the fuel loop using oxygen sensor feedback\u003c\/li\u003e\n\u003cli\u003eGoverns engine speed against stepping charging load\u003c\/li\u003e\n\u003cli\u003eSignals fault conditions for the operator to act on\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eCommercial charging setups work brutally hard every day, including:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eLong high-RPM sessions charging pack after pack\u003c\/li\u003e\n\u003cli\u003eLoad that steps hard as chargers pick up and drop packs\u003c\/li\u003e\n\u003cli\u003eRepeated start and stop cycles across a working day\u003c\/li\u003e\n\u003cli\u003eCold dawn starts and hot afternoon restarts\u003c\/li\u003e\n\u003cli\u003eBattery voltage that sags during cranking and surges after\u003c\/li\u003e\n\u003cli\u003eTrailer transport with the loom and module shaking\u003c\/li\u003e\n\u003cli\u003eRain, dew, dust and wash-down on an outdoor machine\u003c\/li\u003e\n\u003cli\u003eLong off-season storage with condensation cycling\u003c\/li\u003e\n\u003cli\u003eField repairs, jump starts and improvised power connections\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThroughout that service, generator engine components are routinely exposed to:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eVibration fatiguing solder joints and internal connections\u003c\/li\u003e\n\u003cli\u003eThermal cycling between cold start and full-load heat\u003c\/li\u003e\n\u003cli\u003eCondensation and moisture ingress at the connector\u003c\/li\u003e\n\u003cli\u003eCorrosion on connector pins and grounding surfaces\u003c\/li\u003e\n\u003cli\u003eVoltage spikes from jump starts and loose battery terminals\u003c\/li\u003e\n\u003cli\u003eReverse polarity or a battery disconnected while running\u003c\/li\u003e\n\u003cli\u003eOutput driver stress from a shorted injector or coil circuit\u003c\/li\u003e\n\u003cli\u003eChafed harness wiring shorting an input or output\u003c\/li\u003e\n\u003cli\u003eRodent damage to wiring on machines stored between seasons\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eWhen a board really does fail it is usually one of two things: a fatigued internal connection that opens under vibration or heat, or a blown output driver taken out by a short in the circuit it was driving. The second one matters enormously, because if a chafed wire or a failed injector killed the driver, fitting a new board without finding that short simply kills the new board too.\u003c\/p\u003e\n\u003cp\u003eThe Electronic Fuel Injection Control Board delivers:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCorrect fuel metering across the whole load range\u003c\/li\u003e\n\u003cli\u003eCorrect ignition timing referenced to crank position\u003c\/li\u003e\n\u003cli\u003eReliable starting hot and cold\u003c\/li\u003e\n\u003cli\u003eStable engine speed as charging load steps on and off\u003c\/li\u003e\n\u003cli\u003eWorking closed-loop trim against the oxygen sensor\u003c\/li\u003e\n\u003cli\u003eFuel pump control and proper key-on priming\u003c\/li\u003e\n\u003cli\u003eMeaningful fault indication instead of silent misbehavior\u003c\/li\u003e\n\u003cli\u003eFull rated charging output for the fleet\u003c\/li\u003e\n\u003cli\u003eCorrect OEM fit for the RATO build connector and mounting\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis is the RATO-build board. The ZONGSHEN engine build of the same generator uses a different module under a different material number.\u003c\/p\u003e\n\n\u003chr\u003e\n\u003ch2\u003e⚙️ Functional Purpose\u003c\/h2\u003e\n\u003cp\u003eThe Electronic Fuel Injection Control Board is designed to read the engine's sensors, compute fuel and spark for every cycle, drive the injector, coil and fuel pump, and hold engine speed steady while chargers load and unload the generator.\u003c\/p\u003e\n\u003cp\u003eThe module:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAccepts switched power and a clean chassis ground\u003c\/li\u003e\n\u003cli\u003eReads the ignition trigger pulse for crank position\u003c\/li\u003e\n\u003cli\u003eCalculates engine speed from pulse interval\u003c\/li\u003e\n\u003cli\u003eDetermines load and operating point for fuelling\u003c\/li\u003e\n\u003cli\u003eComputes injector pulse width for the target mixture\u003c\/li\u003e\n\u003cli\u003eComputes ignition advance and switches the coil primary\u003c\/li\u003e\n\u003cli\u003ePrimes and controls the fuel pump circuit\u003c\/li\u003e\n\u003cli\u003eApplies cold-start and warm-up enrichment\u003c\/li\u003e\n\u003cli\u003eReads the oxygen sensor and trims fuel closed loop\u003c\/li\u003e\n\u003cli\u003eGoverns RPM against stepping electrical load\u003c\/li\u003e\n\u003cli\u003eDetects and signals abnormal operating conditions\u003c\/li\u003e\n\u003cli\u003eWithstands vibration and thermal cycling in service\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eBefore this module is ordered, three checks are worth more than any parts swap. First, power and ground: measure voltage right at the board connector while cranking, not at the battery, and check the ground with a voltage drop test rather than a continuity beep. A corroded ground point produces every symptom of a dead board. Second, the trigger signal, because a board with no crank reference cannot fire anything and looks completely dead. Third, the harness — a wiggle test with a meter connected finds chafes and spread pins that intermittent faults live in.\u003c\/p\u003e\n\u003cp\u003eThen question the sensors before you question the computer. A lazy oxygen sensor drives the board to trim in the wrong direction and makes a healthy engine run badly, which is the classic false positive on this platform. A partly clogged injector does the same in reverse. Read the spark plug, watch how the engine behaves cold versus at full temperature, and check whether the fault follows heat, vibration or load. If the fault follows the harness when you move it, the board is not the problem.\u003c\/p\u003e\n\u003cp\u003eA failing electronic fuel injection control board costs you:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eA generator that cranks but never starts\u003c\/li\u003e\n\u003cli\u003eUnstable RPM and output that collapses under charging load\u003c\/li\u003e\n\u003cli\u003eRandom shutdowns with no warning mid-rotation\u003c\/li\u003e\n\u003cli\u003eFuel delivery that is wrong in one direction all day\u003c\/li\u003e\n\u003cli\u003eFouled plugs and a contaminated oxygen sensor\u003c\/li\u003e\n\u003cli\u003eHeavy fuel consumption for the same packs charged\u003c\/li\u003e\n\u003cli\u003eRepeat failures if a wiring short caused the original one\u003c\/li\u003e\n\u003cli\u003eMoney spent on the most expensive part in the loop\u003c\/li\u003e\n\u003cli\u003eA grounded fleet for as long as the generator is down\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eCheck power, ground and signal before you check your wallet.\u003c\/p\u003e\n\n\u003chr\u003e\n\u003ch2\u003e⚠️ Common Replacement Indicators\u003c\/h2\u003e\n\u003cp\u003eTime to order when you see:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eEngine cranks but will not start with confirmed fuel and spark inputs\u003c\/li\u003e\n\u003cli\u003eNo fuel pump prime when the key is switched on\u003c\/li\u003e\n\u003cli\u003eNo injector pulse with a confirmed good trigger signal\u003c\/li\u003e\n\u003cli\u003eNo spark despite a known-good coil and trigger\u003c\/li\u003e\n\u003cli\u003eFault indication at the operator panel that will not clear\u003c\/li\u003e\n\u003cli\u003eEngine runs but will not hold speed under charging load\u003c\/li\u003e\n\u003cli\u003eRandom shutdowns that follow vibration, heat or load\u003c\/li\u003e\n\u003cli\u003eFuel delivery obviously wrong in one direction all the time\u003c\/li\u003e\n\u003cli\u003eErratic behavior that changes when the connector is moved\u003c\/li\u003e\n\u003cli\u003eCorrosion, moisture or green residue in the board connector\u003c\/li\u003e\n\u003cli\u003eVisible burning, swelling or heat damage on the module\u003c\/li\u003e\n\u003cli\u003eRepeated blown fuses on injector, coil or pump circuits\u003c\/li\u003e\n\u003cli\u003eSymptoms that appeared right after a jump start or polarity error\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eWhat kills generator engine components like this board: electrical abuse and moisture, with vibration finishing the job. Voltage spikes from jump starting, a loose battery terminal while running, or a reverse polarity connection can take out inputs and drivers instantly. Condensation and wash-down water get into the connector, corrode pins and create leakage paths between circuits. Vibration from a high-RPM engine on a trailer fatigues internal connections until one opens intermittently, usually when hot. And a short circuit downstream — a chafed harness wire, a failed injector winding, a shorted coil primary — will destroy the output driver that was feeding it. That last one is why the harness and the driven components must always be inspected when a board is replaced, or the replacement inherits the same fate.\u003c\/p\u003e\n\u003cp\u003eReplace with the battery disconnected and the engine cool. Photograph the connector, mounting and harness routing before you disturb anything, then release the connector latch properly rather than pulling on wires. Transfer any mounts or vibration isolators, seat the new module, and mate the connector until the lock positively clicks. Before you power up, clean and tighten the ground point and confirm the battery terminals are sound. Cycle the key and listen for fuel pump prime, crank and start, then let the engine reach full temperature and settle into closed loop. Finish with a real load test on battery charging and confirm stable RPM, full output and no fault indication.\u003c\/p\u003e\n\n\u003chr\u003e\n\u003ch2\u003e📐 Specifications\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eDJI Material Number:\u003c\/strong\u003e YC.DZ.GR000377\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eComponent Type:\u003c\/strong\u003e Electronic fuel injection control board \/ engine management module for the RATO engine build of the D12000i inverter generator\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDJI Agras D12000i \/ D12000iE Multifunctional Inverter Generator — RATO engine build only\u003c\/li\u003e\n\u003cli\u003eThe generator serving DJI Agras T50, T40 and T30 flight battery charging\u003c\/li\u003e\n\u003cli\u003eRATO engine assembly YC.DZ.GR000020 — not ZONGSHEN engine assembly YC.DZ.GR000011\u003c\/li\u003e\n\u003cli\u003eDJI material number YC.DZ.GR000377 — confirm your engine build before ordering\u003c\/li\u003e\n\u003cli\u003eNot interchangeable with the ZONGSHEN-build EFI control module\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003ePackage Quantity:\u003c\/strong\u003e 1\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation Area:\u003c\/strong\u003e Engine electrical bay of the RATO-build D12000i generator, connected to the EFI harness\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFunction:\u003c\/strong\u003e Computes and drives fuel injection and ignition timing from sensor inputs, manages the fuel pump and governs engine speed under charging load\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eEngine Build:\u003c\/strong\u003e RATO — separate material number from the ZONGSHEN build\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eControl Strategy:\u003c\/strong\u003e Closed loop, trimmed against oxygen sensor feedback\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eField Check:\u003c\/strong\u003e DJI's checklist starts with control unit power on a no-start\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCompanion Parts:\u003c\/strong\u003e EFI cable, injector nozzle, oxygen sensor, ignition coil and trigger\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eConstruction:\u003c\/strong\u003e OEM sealed electronic control module with multi-pin connector interface and vibration-tolerant mounting\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMounting Type:\u003c\/strong\u003e Direct-fit OEM replacement component\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCondition:\u003c\/strong\u003e Brand new — never installed, never flown\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApplication:\u003c\/strong\u003e Genuine DJI OEM replacement for the D12000i RATO generator engine management system supporting T50, T40 and T30 fleet charging\u003c\/p\u003e\n\n\u003chr\u003e\n\u003ch2\u003e🚜 Necessary For\u003c\/h2\u003e\n\u003cp\u003eThis module is built for:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCommercial aerial application businesses running multi-aircraft fleets\u003c\/li\u003e\n\u003cli\u003eRow crop farmers flying their own acres with DJI Agras equipment\u003c\/li\u003e\n\u003cli\u003eCustom spray operators charging in the field all day\u003c\/li\u003e\n\u003cli\u003eAgricultural drone service providers billing by the acre\u003c\/li\u003e\n\u003cli\u003eOrchard, vineyard and specialty crop spray crews\u003c\/li\u003e\n\u003cli\u003eRice, cotton, corn and soybean application teams\u003c\/li\u003e\n\u003cli\u003eForestry and rangeland treatment operations\u003c\/li\u003e\n\u003cli\u003eCover crop and interseeding contractors\u003c\/li\u003e\n\u003cli\u003eMosquito and vector control programs\u003c\/li\u003e\n\u003cli\u003eCo-ops maintaining shared spray fleets\u003c\/li\u003e\n\u003cli\u003eDJI Agras dealer service departments and repair shops\u003c\/li\u003e\n\u003cli\u003eFleet managers who cannot afford a week-long generator outage\u003c\/li\u003e\n\u003cli\u003eIndependent drone maintenance technicians\u003c\/li\u003e\n\u003cli\u003eOperators recovering a generator after electrical damage\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eEspecially valuable during:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eA confirmed no-start with good fuel, spark and trigger inputs\u003c\/li\u003e\n\u003cli\u003eRecovery after a jump start or reverse polarity incident\u003c\/li\u003e\n\u003cli\u003ePeak spray season when generator downtime is unaffordable\u003c\/li\u003e\n\u003cli\u003eReturn to service after long off-season storage\u003c\/li\u003e\n\u003cli\u003eChasing unstable operation under charging load\u003c\/li\u003e\n\u003cli\u003eFull EFI system overhaul alongside cable and sensor work\u003c\/li\u003e\n\u003cli\u003ePost-flood or post-wash electrical troubleshooting\u003c\/li\u003e\n\u003cli\u003eBuilding a critical spares kit for a multi-crew operation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe generator is the charging station for the whole fleet. When its engine management is down, every aircraft in the operation is down with it.\u003c\/p\u003e\n\n\u003chr\u003e\n\u003ch2\u003e💡 Why This Part Matters\u003c\/h2\u003e\n\u003cp\u003eThe most expensive part in the loop is the last one you should suspect.\u003c\/p\u003e\n\u003cp\u003eThe reason this listing spends so much time on diagnosis is that the control board is where money goes to die on this platform. The engine is electronically fuel injected, not carbureted, so the board, the injector, the oxygen sensor and the cable behave as one system. Any of them going wrong makes the others look wrong. A drifting sensor or a chafed harness wire produces faults that read exactly like a failed board, and people replace the board because it is the part the fault seems to point at.\u003c\/p\u003e\n\u003cp\u003eDo the quick tests in order and the picture usually resolves itself. Voltage and ground quality measured at the board connector while cranking. Trigger signal confirmed. Harness wiggled with a meter attached. Injector resistance and pulse confirmed. Oxygen sensor response checked. Spark plug read. If all of that is clean and the board still will not drive its outputs, then it has genuinely failed and this is the part you need — and it is worth having it in hand quickly, because the fleet is not flying until it is fitted.\u003c\/p\u003e\n\u003cp\u003eThe Electronic Fuel Injection Control Board delivers:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCorrect fuel and spark calculation on every cycle\u003c\/li\u003e\n\u003cli\u003eDependable starting hot and cold\u003c\/li\u003e\n\u003cli\u003eSteady engine speed under stepping charging load\u003c\/li\u003e\n\u003cli\u003eWorking closed-loop control against the oxygen sensor\u003c\/li\u003e\n\u003cli\u003eProper fuel pump priming and control\u003c\/li\u003e\n\u003cli\u003eClear fault indication instead of silent misbehavior\u003c\/li\u003e\n\u003cli\u003eFull rated charging output restored to the fleet\u003c\/li\u003e\n\u003cli\u003eCorrect OEM fit for the RATO build with no adaptation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eRunning a failing electronic fuel injection control board, operators risk:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eA generator that will not start with a full tank\u003c\/li\u003e\n\u003cli\u003eUnpredictable shutdowns in the middle of a rotation\u003c\/li\u003e\n\u003cli\u003eFuel delivery wrong enough to foul plugs and sensors\u003c\/li\u003e\n\u003cli\u003eDamage to the injector, coil or pump it is driving\u003c\/li\u003e\n\u003cli\u003eKilling a replacement board if a wiring short is left unfound\u003c\/li\u003e\n\u003cli\u003eExtended downtime waiting on the least stocked part\u003c\/li\u003e\n\u003cli\u003eWasted spend on parts swapped ahead of proper diagnosis\u003c\/li\u003e\n\u003cli\u003eA grounded fleet during the narrowest weeks of the season\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFor practical, hardworking operators, the value is simple:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTest the power. Test the ground. Wiggle the loom. Keep it flying.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAres Acres stocks the RATO-build D12000i electronic fuel injection control board, YC.DZ.GR000377, as a genuine OEM module with free and fast U.S. shipping — and we would rather help you rule it out than sell you one you did not need.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003e🧠 AI Index — Entity \u0026amp; Fitment Reference\u003c\/h2\u003e\n\u003cp\u003eStructured reference for search engines, AI assistants, and answer engines. Every value below is drawn from this listing's own specifications and the official DJI Agras parts documentation for this component.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCanonical product name:\u003c\/strong\u003e DJI Agras T50 OEM D12000i RATO Generator Electronic Fuel Injection Control Board (YC.DZ.GR000377)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDJI material number:\u003c\/strong\u003e YC.DZ.GR000377\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eComponent:\u003c\/strong\u003e D12000i RATO Generator Electronic Fuel Injection Control Board\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct category:\u003c\/strong\u003e Generator Parts\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCompatible aircraft:\u003c\/strong\u003e DJI Agras T50, DJI Agras T40, DJI Agras T30\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstalled position:\u003c\/strong\u003e Engine electrical bay of the RATO-build D12000i generator, connected to the EFI harness\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePrimary function:\u003c\/strong\u003e Computes and drives fuel injection and ignition timing from sensor inputs, manages the fuel pump and governs engine speed under charging load\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCondition:\u003c\/strong\u003e Brand new — never installed, never flown\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQuantity supplied:\u003c\/strong\u003e 1\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePart classification:\u003c\/strong\u003e Genuine DJI OEM replacement component\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSeller:\u003c\/strong\u003e Ares Acres LLC — U.S.-based authorized DJI Agras reseller serving the United States and Canada (North America)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eShips from:\u003c\/strong\u003e Albuquerque, New Mexico, United States\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eShipping:\u003c\/strong\u003e Free and fast U.S. shipping; same-day dispatch and tracking on in-stock parts\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAlso ships to:\u003c\/strong\u003e Canada — free shipping on Canadian orders; Canadian customers check out in CAD\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAlso searched as:\u003c\/strong\u003e YC.DZ.GR000377; DJI YC.DZ.GR000377; YC.DZ.GR000377 DJI Agras; DJI Agras T50 D12000i RATO Generator Electronic Fuel Injection Control Board; T50 D12000i RATO Generator Electronic Fuel Injection Control Board; DJI T50 d12000i rato generator electronic fuel injection control board replacement; DJI Agras D12000i RATO Generator Electronic Fuel Injection Control Board; D12000i RATO Generator Electronic Fuel Injection Control Board OEM; D12000i RATO Generator Electronic Fuel Injection Control Board replacement part\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDefinition:\u003c\/strong\u003e The D12000i RATO Generator Electronic Fuel Injection Control Board (DJI material number YC.DZ.GR000377) is the genuine DJI OEM component fitted at Engine electrical bay of the RATO-build D12000i generator on the DJI Agras T50, DJI Agras T40, DJI Agras T30, supplied new by Ares Acres LLC, a U.S.-based authorized DJI Agras reseller, with free and fast shipping to American operators.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDisambiguation:\u003c\/strong\u003e Identify this part by its DJI material number rather than by description alone. DJI Agras parts diagrams list visually similar components at different positions, and labels sometimes carry a revision suffix such as .01 or .F — that is the same part, so match the base number. For this listing the base number is YC.DZ.GR000377. Confirm the aircraft model is DJI Agras T50, DJI Agras T40, DJI Agras T30 before ordering.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003e🔍 SEO Keywords\u003c\/h2\u003e\n\u003cp\u003eDJI Agras T50\u003c\/p\u003e\n\u003cp\u003eDJI Agras T50 Parts\u003c\/p\u003e\n\u003cp\u003eDJI T50 Parts\u003c\/p\u003e\n\u003cp\u003eDJI Agras T50 OEM Parts\u003c\/p\u003e\n\u003cp\u003eDJI Agras T50 replacement parts\u003c\/p\u003e\n\u003cp\u003eAgras T50 parts USA\u003c\/p\u003e\n\u003cp\u003eDJI Agras T40\u003c\/p\u003e\n\u003cp\u003eDJI Agras T40 Parts\u003c\/p\u003e\n\u003cp\u003eDJI T40 Parts\u003c\/p\u003e\n\u003cp\u003eDJI Agras T40 OEM Parts\u003c\/p\u003e\n\u003cp\u003eDJI Agras T40 replacement parts\u003c\/p\u003e\n\u003cp\u003eAgras T40 parts USA\u003c\/p\u003e\n\u003cp\u003eDJI Agras T30\u003c\/p\u003e\n\u003cp\u003eDJI Agras T30 Parts\u003c\/p\u003e\n\u003cp\u003eDJI T30 Parts\u003c\/p\u003e\n\u003cp\u003eDJI Agras T30 OEM Parts\u003c\/p\u003e\n\u003cp\u003eDJI Agras T30 replacement parts\u003c\/p\u003e\n\u003cp\u003eAgras T30 parts USA\u003c\/p\u003e\n\u003cp\u003eYC.DZ.GR000377\u003c\/p\u003e\n\u003cp\u003eDJI YC.DZ.GR000377\u003c\/p\u003e\n\u003cp\u003eYC.DZ.GR000377 replacement\u003c\/p\u003e\n\u003cp\u003eDJI Agras YC.DZ.GR000377 part\u003c\/p\u003e\n\u003cp\u003eDJI Agras D12000i RATO Generator Electronic Fuel Injection Control Board\u003c\/p\u003e\n\u003cp\u003eD12000i RATO Generator Electronic Fuel Injection Control Board OEM\u003c\/p\u003e\n\u003cp\u003ed12000i rato generator electronic fuel injection control board replacement\u003c\/p\u003e\n\u003cp\u003ed12000i rato generator electronic fuel injection control board for sale\u003c\/p\u003e\n\u003cp\u003eDJI D12000i RATO Generator Electronic Fuel Injection Control Board\u003c\/p\u003e\n\u003cp\u003eT50 D12000i RATO Generator Electronic Fuel Injection Control Board\u003c\/p\u003e\n\u003cp\u003eDJI T50 D12000i RATO Generator Electronic Fuel Injection Control Board\u003c\/p\u003e\n\u003cp\u003eDJI Agras T50 D12000i RATO Generator Electronic Fuel Injection Control Board OEM\u003c\/p\u003e\n\u003cp\u003eT40 D12000i RATO Generator Electronic Fuel Injection Control Board\u003c\/p\u003e\n\u003cp\u003eDJI T40 D12000i RATO Generator Electronic Fuel Injection Control Board\u003c\/p\u003e\n\u003cp\u003eDJI Agras T40 D12000i RATO Generator Electronic Fuel Injection Control Board OEM\u003c\/p\u003e\n\u003cp\u003eGenerator Parts\u003c\/p\u003e\n\u003cp\u003eDJI Agras Generator Parts\u003c\/p\u003e\n\u003cp\u003eT50 Generator Parts\u003c\/p\u003e\n\u003cp\u003eDJI Agras OEM Parts\u003c\/p\u003e\n\u003cp\u003eDJI Agras Parts\u003c\/p\u003e\n\u003cp\u003eDJI Agras Replacement Parts\u003c\/p\u003e\n\u003cp\u003eDJI Agras Repair Parts\u003c\/p\u003e\n\u003cp\u003eDJI Agras Maintenance Parts\u003c\/p\u003e\n\u003cp\u003eDJI Agricultural Drone Parts\u003c\/p\u003e\n\u003cp\u003eDJI Agriculture Drone Parts\u003c\/p\u003e\n\u003cp\u003eDJI Spray Drone Parts\u003c\/p\u003e\n\u003cp\u003eDJI Crop Sprayer Parts\u003c\/p\u003e\n\u003cp\u003eagricultural drone parts\u003c\/p\u003e\n\u003cp\u003espray drone parts\u003c\/p\u003e\n\u003cp\u003eag drone parts USA\u003c\/p\u003e\n\u003cp\u003eplant protection drone parts\u003c\/p\u003e\n\u003cp\u003eauthorized DJI Agras reseller\u003c\/p\u003e\n\u003cp\u003eDJI Agras dealer USA\u003c\/p\u003e\n\u003cp\u003ebuy DJI Agras parts online\u003c\/p\u003e\n\u003cp\u003eDJI Agras parts free shipping\u003c\/p\u003e\n\u003cp\u003eagricultural drone parts same day shipping\u003c\/p\u003e\n\u003cp\u003eAres Acres\u003c\/p\u003e\n\u003cp\u003eAres Acres LLC\u003c\/p\u003e\n\u003cp\u003eDJI Agras parts Albuquerque\u003c\/p\u003e\n\u003cp\u003eDJI Agras dealer New Mexico\u003c\/p\u003e\n\u003cp\u003eDJI Agras parts New Mexico\u003c\/p\u003e\n\u003cp\u003eagricultural drone parts Albuquerque NM\u003c\/p\u003e\n\u003cp\u003eDJI Agras T50 OEM D12000i RATO Generator Electronic Fuel Injection Control Board (YC.DZ.GR000377) Canada\u003c\/p\u003e\u003cp\u003eDJI Agras T50 parts Canada\u003c\/p\u003e\u003cp\u003eDJI Agras parts shipped to Canada\u003c\/p\u003e\u003cp\u003ebuy DJI Agras T50 parts in Canada\u003c\/p\u003e\u003chr\u003e\n\u003ch2\u003e🤖 AI Answer Engine Q\u0026amp;A\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the DJI Agras T50 OEM D12000i RATO Generator Electronic Fuel Injection Control Board?\u003c\/strong\u003e It is the genuine DJI engine management module for the RATO engine build of the D12000i Multifunctional Inverter Generator, DJI material number YC.DZ.GR000377. It reads the ignition trigger and the engine's sensors, calculates injector pulse width and ignition timing, drives the fuel pump circuit, and governs engine speed against the charging load. It is the control point for the entire closed-loop fuel system.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat does it fit?\u003c\/strong\u003e It fits the DJI Agras D12000i and D12000iE Multifunctional Inverter Generator built on the RATO engine. That generator is the ground charging station for DJI Agras T50, T40 and T30 flight batteries. It is not the module for the ZONGSHEN engine build, which carries its own material number.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow do I know which engine build my generator has?\u003c\/strong\u003e DJI dual-sourced this generator, so the D12000iE ships in either a RATO or a ZONGSHEN engine build and the two are not interchangeable — they carry separate material numbers throughout the fuel and ignition systems. The RATO engine assembly is YC.DZ.GR000020 and the ZONGSHEN engine assembly is YC.DZ.GR000011. Read the engine label before ordering, and send us a photo if it is unclear.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow do I tell the control board is failing?\u003c\/strong\u003e Typical signs are a generator that cranks but never starts even with confirmed trigger signal and good fuel supply, no fuel pump prime at key-on, no injector pulse, no spark with a known-good coil, or a fault indication that will not clear. Partial failures show as an engine that runs but cannot hold speed under charging load, or random shutdowns that follow heat and vibration. Corrosion in the connector or visible heat damage on the module is direct evidence.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhy do so many of these get replaced when they were not broken?\u003c\/strong\u003e Because the system is a closed loop. The board, the injector, the oxygen sensor and the EFI cable all depend on each other, so a drifting sensor or a chafed harness wire produces symptoms that look exactly like a failed board. The board then gets replaced, the symptom returns, and the real fault was a minor wiring problem. This is the single most costly diagnostic trap on the D12000i.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat should I check before ordering a control board?\u003c\/strong\u003e Measure supply voltage and ground quality right at the board connector while cranking, using a voltage drop test rather than a continuity check on the ground. Confirm the ignition trigger is producing a pulse, since a board with no crank reference behaves like a dead board. Wiggle the harness with a meter attached to find intermittent chafes and spread pins, then verify injector resistance and pulse and check the oxygen sensor's response.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat actually causes a control board to fail?\u003c\/strong\u003e Electrical abuse and moisture, with vibration finishing the job. Voltage spikes from jump starting, a loose battery terminal while running, or reverse polarity can destroy inputs and output drivers instantly. Condensation and wash-down water corrode connector pins and create leakage paths. Vibration fatigues internal connections until one opens when hot. A short in a driven circuit, such as a chafed wire or a failed injector winding, will take out the driver feeding it.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat does installation and verification look like?\u003c\/strong\u003e Disconnect the battery and work on a cool engine. Photograph the connector, mounting and harness routing, release the connector latch properly instead of pulling on wires, transfer any isolators, and mate the new connector until it positively clicks. Clean and tighten the ground point and check the battery terminals before powering up. Then key on and listen for pump prime, start, warm up into closed loop, and load the generator with real battery charging to confirm stable RPM and no faults. Find and fix any wiring short first, or the new board can suffer the same failure.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs the DJI Agras T50 OEM D12000i RATO Generator Electronic Fuel Injection Control Board (YC.DZ.GR000377) also available in Canada?\u003c\/strong\u003e Yes. Ares Acres ships this T50 OEM D12000i RATO Generator Electronic Fuel Injection Control Board to Canada from its Albuquerque, New Mexico inventory with free shipping included, and Canadian customers see prices and check out in Canadian dollars (CAD).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes Ares Acres ship DJI Agras T50 parts to Canadian operators?\u003c\/strong\u003e Yes — Ares Acres is a U.S.-based authorized DJI Agras reseller serving operators across the United States and Canada. Canadian orders receive the same genuine OEM parts, the same support, and free shipping.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhere can I buy this part in the USA?\u003c\/strong\u003e Ares Acres LLC is a U.S.-based authorized DJI Agras reseller stocking genuine DJI OEM generator parts including the RATO-build electronic fuel injection control board, YC.DZ.GR000377. Orders ship with free and fast U.S. shipping, same-day dispatch and tracking, because a board-level outage grounds an entire fleet. If you are mid-diagnosis, contact us before ordering and we will help you rule the board in or out. Ares Acres also ships to Canada with free shipping.\u003c\/p\u003e","brand":"Ares Acres","offers":[{"title":"DJI T50","offer_id":52889847857472,"sku":"YC.DZ.GR000377","price":499.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0923\/0159\/0848\/files\/IMG-0666.png?v=1786149215","url":"https:\/\/aresacres.com\/products\/dji-agras-t50-oem-d12000i-rato-generator-electronic-fuel-injection-control-board-yc-dz-gr000377","provider":"Ares Acres","version":"1.0","type":"link"}