Fuel Pump Delivery Error
There's a problem with the fuel pump's ability to deliver the required fuel pressure.
Heads up: this code wasn't in our hand-written library yet, so DiagCoach AI built this page on the fly. Double-check critical specs against service info before condemning parts.
What it means (plain English)
Your fuel pump isn't delivering enough fuel pressure, which can cause the engine to run poorly or not start.
What the computer is actually seeing
The engine control module (ECM) monitors the fuel pressure from the fuel rail sensor. It expects a certain range of pressure based on engine load and RPMs. If the pressure drops below 30 psi when it should be above 40 psi, the ECM triggers this code.
What a healthy reading looks like
Fuel pressure should generally be between 40-60 psi while the engine is running, depending on the specific vehicle.
Guided diagnostic — the DiagCoach way
Don't just throw parts at it. Walk through these in order — each step tells you whether to keep going or stop and fix what you found.
- 11. Check for proper fuel level in the tank. If low, add fuel and retest.
- 22. Inspect wiring and connectors from the fuel pump to the ECM for damage or corrosion. Repair as needed.
- 33. Using a fuel pressure gauge, check the fuel pressure at the rail. It should read between 40-60 psi. If it's below 40 psi, continue.
- 44. Replace the fuel filter if it hasn't been changed in the recommended interval. Retest the fuel pressure.
- 55. If pressure is still low after replacing the filter, check the fuel pump operation and replace it if necessary.
Common causes
- Faulty fuel pump
- Clogged fuel filter
- Bad fuel pressure regulator
- Electrical issues (wiring/connectors)
- Low fuel level
Typical repair cost
$$-$$$
Related codes
Frequently asked questions
Is it safe to drive with this code?
It's not recommended to drive long distances, as low fuel pressure can cause stalling.
Will this code come back after I fix it?
If you properly fix the underlying issue, the code should not come back.
Why does this code appear with other codes?
Fuel system issues often relate closely, so problems can trigger multiple codes.
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