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P0507 Idle Control System RPM Higher Than Expected
What it means
The engine is idling faster than the computer wants.
Severity: Low to Moderate
Can I drive it? Usually drivable; higher idle can make the car creep and use more fuel.
Common causes (most likely first)
- Vacuum leak
- Dirty throttle body / IAC
- Faulty IAC valve
- PCV valve problem
Likely fixes
- Find and fix vacuum leaks
- Clean throttle body
- Perform idle relearn
- Replace IAC valve or PCV valve
DIY parts cost
$10–$150
Approximate estimate
Shop repair cost
$100–$450
Approximate estimate, parts + labor
DIY difficulty
Easy to Moderate
Varies by vehicle
Cost ranges are rough, approximate U.S. estimates and vary widely by vehicle, region, and parts brand. Always confirm the diagnosis before buying parts.
Parts you may need
- Throttle body cleanerCheck price
- Idle air control valveCheck price
- PCV valveCheck price
- Vacuum hoseCheck price
Affiliate links are placeholders. Verify fitment for your year/make/model.