P0230 Code: Fuel Pump Primary Circuit Malfunction
🟠 Moderate severity · drivable
Drivable if the engine runs, but a fuel-pump circuit fault can cause stalling or a no-start, so fix it soon.
What P0230 means
There's an electrical fault in the fuel pump's primary circuit — usually the relay or wiring that powers the pump. Without power, the pump won't deliver fuel.
Symptoms
- Check engine light is on
- Hard starting or no-start
- Engine stalling
- Loss of power under load
Common causes
- most common: Faulty fuel pump relay
- common: Failing fuel pump
- common: Damaged wiring or loose connector in the fuel pump circuit
How to fix it
| Fix | DIY? | Typical cost |
|---|---|---|
| Replace the fuel pump relay | Yes | $20–60 |
| Inspect and repair the fuel pump wiring and connector | Mechanic | $50–150 |
| Replace a failing fuel pump | Mechanic | $300–800 |
Frequently asked questions
Can I drive with a P0230 code?
Only if the engine is running, and even then with caution — it could stall or fail to restart. Fix it soon.
What is the most common cause of P0230?
A faulty fuel pump relay. It's a cheap, easy part to replace.
How much does it cost to fix a P0230?
$20–$60 for a relay, or $300–$800 if the fuel pump itself needs replacing.
Related codes
Updated 2026-08. This page is informational and not a substitute for professional diagnosis.