P0230 — Fuel pump primary circuit

What this code generally means, its most common causes, and how serious it is.

TYPE: GENERICSYSTEM: INJECTORS AND FUEL SUPPLY

What does the code P0230 mean?

This code flags an electrical problem in the circuit that powers or controls the fuel pump — the part that sends pressurized fuel from the tank to the engine.

Common possible causes

A failing fuel pump relay — a common cause, and a relatively simple part to check.
Damaged wiring or connector — to the pump or its relay.
A failing fuel pump itself — the internal element has stopped working.

General severity

Serious — stalling risk

An electrical fault on the fuel pump can cause sudden stalling or prevent a restart, sometimes without clear warning. If intermittent stalling shows up, it's safer to get the car checked promptly rather than wait.

This is still a general severity for this code, not a diagnostic for your car. Only a real read of your codes, with your mileage and vehicle history, can tell what's really going on.

Get a diagnostic for YOUR car

Connect a Bluetooth OBD2 reader and read your vehicle's real codes with Meca — free, no appointment, with causes ranked for your actual situation.

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Meca doesn't replace an in-person check by a professional. For any serious sign (a flashing light, a major loss of power, a fuel smell), see a mechanic promptly.

Frequently asked questions

Can my car stall without warning with this code?

That's a recognized risk with this specific circuit — an electrical fault on the pump can cut fuel supply abruptly.

Is the relay cheaper to replace than the pump?

Usually yes, and it's often checked first before replacing the pump itself, which costs more.

Can I keep driving with this code?

That isn't recommended without a check — the risk of sudden stalling makes this code more serious than many others on this list.