Commanded Engine Power - Not Responding
The engine control unit is not receiving the expected power response.
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)
When you push the throttle, the engine doesn't make the expected power that the computer thinks it should, indicating a problem in the power delivery system.
What the computer is actually seeing
The engine controller expects a certain amount of power based on throttle position and load; if there's a mismatch (such as no increase in RPMs when throttle is applied), it triggers this code.
What a healthy reading looks like
The engine RPM should increase by at least 200-300 RPM when the accelerator is pressed, based on the throttle position signal.
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 for any other active codes that could indicate related issues.
- 2Inspect wiring and connectors at the accelerator pedal position sensor for damage or corrosion. Repair as needed.
- 3Test the accelerator pedal position sensor using a multimeter; it should output a voltage change between 0.5V and 4.5V as the pedal is pressed and released.
- 4If the sensor is good, check fuel pressure; it should be within manufacturer specifications (usually around 40-60 psi for most gas engines).
- 5If all checks are good, consider scanning for any fuel system or engine control module problems that could cause a lack of response.
Common causes
- Faulty accelerator pedal position sensor
- Wiring issues or damaged connectors
- Faulty engine control module
- Fuel delivery issues (clogged filter or pump failure)
Typical repair cost
$$$
Related codes
Frequently asked questions
Is it safe to drive with this code?
It's not advised. You'll experience reduced power, which can affect driveability.
Will this code come back after I fix it?
If the underlying issue is resolved, the code should not return; otherwise, it will.
Why does this code appear alongside others?
Multiple codes often indicate a common issue in the system; for example, if the throttle position sensor fails, it can set several related 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.
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