Injection Pump Fuel Metering Control A Range/Performance Problem
Issues with the fuel metering control of the injection pump.
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)
The engine's computer can't control how much fuel the injection pump delivers, which can lead to engine performance problems or poor fuel economy.
What the computer is actually seeing
The PCM (Powertrain Control Module) monitors the fuel metering control for variations against expected performance. It expects a specific voltage range from the injection pump's fuel metering control circuit, typically 0.5V to 4.5V. When it detects inconsistent values or performance outside of this range, it triggers this code.
What a healthy reading looks like
Fuel pressure should be around 5-10 PSI during operation; injector timing must align with manufacturer's specs.
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.
- 1Check the vehicle for other related DTCs. If found, address them first.
- 2Inspect wiring and connectors for the injection pump. Look for frayed wires or corrosion. Repair as needed.
- 3Check the fuel level and quality. Ensure it meets specs and isn't contaminated.
- 4Check fuel pressure at the rail; it should be between 5-10 PSI. If low, check for a clogged filter or failing pump.
- 5If all checks are good, swap the fuel pressure regulator with a known good unit and test again.
- 6If the code returns, replace the injection pump as it may be malfunctioning.
Common causes
- Faulty injection pump
- Wiring issues in the fuel metering control circuit
- Failed fuel pressure regulator
- Clogged fuel filter
- Bad fuel quality
Typical repair cost
$$
Related codes
Frequently asked questions
Can I drive with this code?
Yes, but expect reduced performance and potentially lower fuel efficiency. Get it fixed soon.
Will this code come back after clearing it?
It may come back if the underlying issue isn't resolved.
Why does this code pair with other fuel system codes?
They're often related to the same system components, and one issue can cause multiple codes.
Working a real vehicle right now?
Let DiagCoach walk you through it live with your specific symptoms, vehicle, and what you've already checked.
Start guided diagnostic →