Internal Control Module Accelerator Pedal Position Performance
This code means the PCM/ECM has detected a performance problem affecting internal control module accelerator pedal position. Because airflow is used to calculate fueling, the engine may idle poorly, hesitate, or run with incorrect fuel trims until the fault is repaired.
What You Might Notice
- Check Engine Light illuminated
- Rough idle
- Hesitation on acceleration
- Reduced fuel economy
- Possible stalling
Most Common Causes
- 1
Vacuum leak or air leak in the intake system
- 2
Faulty throttle, MAF/MAP, or related airflow sensor
- 3
Damaged wiring or poor connector contact
- 4
Carbon buildup or sticking throttle body
- 5
PCM/ECM fault
How to Diagnose It
- 1
Check Vacuum leak or air leak in the intake system — Inspect for signs of failure and test before replacing.
- 2
Check Faulty throttle, MAF/MAP, or related airflow sensor — Inspect for signs of failure and test before replacing.
- 3
Check Damaged wiring or poor connector contact — Inspect for signs of failure and test before replacing.
- 4
Check Carbon buildup or sticking throttle body — Inspect for signs of failure and test before replacing.
- 5
Check PCM/ECM fault — Inspect for signs of failure and test before replacing.
How to Fix It
- 1
Inspect the intake tract for leaks or restrictions
- 2
Clean and test the throttle body or airflow sensor
- 3
Repair wiring or connector issues
- 5
Clear the code and verify normal idle and throttle response
Need a deeper diagnosis?
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