P0230 on Infiniti: How to Diagnose & Fix
Fuel Pump Primary Circuit Malfunction
1 Infiniti model · 1 documented issue · 1 critical
P0230 on Infiniti by model: symptoms, diagnosis and fix
The impeller inside the fuel pump module can absorb fuel, swell, and bind against the pump housing. Once it binds the pump fails and fuel delivery stops, stalling the engine — potentially at speed and without warning. This is the same low-density impeller defect that ran through a large number of Nissan and Infiniti products of the period. NHTSA campaign 21V373000 covers 2020-2021 QX80 and Nissan Armada with V8 engines; owner letters were mailed February 4, 2022, and the campaign numbers are R21A3 for Infiniti and R21A2 for Nissan. The remedy is replacement of the fuel pump module, not a software change.
Common Symptoms
- Engine stalls while driving without warning
- Long crank or failure to restart when hot
- Hesitation or loss of power under load
- Whining or buzzing from the fuel tank area
- Check engine light with fuel pressure codes
How to Fix
Have the dealer replace the fuel pump module under recall R21A3 / NHTSA 21V373000, free of charge, and verify by VIN that it was actually performed on a used purchase. The failure mode gives some warning: a swelling impeller drags before it seizes, so hard hot starts, extended cranking, hesitation under load, and a whining fuel pump are the precursors to the stall. Do not let a shop replace an in-tank pump at your expense before checking recall eligibility — this is a covered repair on affected VINs. If the vehicle has already stalled and been recovered, mention that specifically, since the dealer will want to check for consequential damage.
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Sources for this issue (1)
P0230 code reference
General diagnostic-code context. The code alone does not confirm a cause for your vehicle; use the applicable issue card and its sources.
Frequently asked questions
What does P0230 mean on a Infiniti?
P0230 stands for "Fuel Pump Primary Circuit Malfunction." P0230 means the engine computer detected a fault in the fuel pump primary circuit — the control side that switches the fuel pump (or its relay) on and off. The PCM energizes this circuit to run the electric fuel pump that delivers fuel to the engine; if it sees voltage that is too high, too low, or out of expected range, it sets this code. Because the pump may not run correctly, the engine can crank without starting, stall, lose power, or hesitate. This is a circuit/control fault rather than a direct measurement of fuel pressure. On Infiniti it is documented across 1 model: QX80.
What are the most common causes of P0230?
The most common causes of P0230 are: Faulty fuel pump relay, Damaged wiring or connectors in the fuel pump control circuit, Corroded or loose ground/power connection, Failed fuel pump or fuel pump driver module, Blown fuse or fusible link, Open or short in the primary control wiring, Faulty PCM driver output (rare). The specific cause varies by vehicle.
How much does it cost to fix P0230 on a Infiniti?
Repair costs vary widely with the root cause and Infiniti model; each issue on this page carries its own estimate where one is published.
Looking for P0230 on a different make?
View P0230 across all makes →Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.