Fuel pump primary circuit
What P0230 means
Your car's computer set P0230: Fuel pump primary circuit. It belongs to the fuel and air metering group of codes. It is a generic code, so it means the same thing on every make. The check engine light usually comes on once the fault has been seen on two drives in a row. Until then it shows up as a pending code.
Can I keep driving? Low fuel pressure can make the engine stall or hesitate. Get it checked before a long drive.
Common causes
- Weak fuel pump
- Clogged fuel filter
- Faulty fuel pressure regulator
- Low fuel level on a hot day
Fix the cheapest, most likely cause first. Clearing the code without a repair only turns the light off until the fault comes back.
Check it yourself
Fill the tank first. Watch fuel trims: they climb when the engine is starved of fuel.
Torque Deck reads P0230 with a cheap Bluetooth OBD2 adapter. It also shows the freeze frame (engine conditions at the moment the code set) and the live data you need to narrow it down.
Parts
Parts most often replaced for P0230: fuel pump. Confirm the cause first, and match the part to your exact engine.
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Related codes
This page explains what the code usually means. It is not a diagnosis of your car. When in doubt, ask a mechanic.