All codes
P0507Engine Problems
Idle Control System RPM Higher Than Expected
Fix P0507 high idle code. Learn why your engine idle speed is too high and how to correct it.
What you may notice
Symptoms
- 01High idle speed (over normal)
- 02Vehicle creeps forward in gear
- 03Check engine light on
- 04Idle doesn't drop after warm-up
- 05RPM hangs high after acceleration
Where to look first
Common causes
- 01Vacuum leak
- 02IAC valve stuck open
- 03Dirty throttle body
- 04Air intake leak after MAF
- 05Throttle position sensor issues
Step by step
What to check and repair
- 01Check for vacuum leaks thoroughly
- 02Clean throttle body and IAC
- 03Inspect intake system for leaks
- 04Test IAC valve operation
- 05Check TPS readings
What Does P0507 Mean?
P0507 indicates that the engine idle speed is higher than the ECM's target range, typically more than 200 RPM above the desired idle.
Why Idle Runs High
High idle is often caused by extra air entering the engine through vacuum leaks, or a stuck IAC valve allowing too much airflow.
Safety Note
High idle can cause the vehicle to creep forward unexpectedly when in gear. Address this code promptly.