What does P0507 mean?
The actual idle speed is higher than the computer is asking for. The most common reason is extra air getting into the engine that the computer cannot control.
Codes are a starting point. They tell you which test failed, not which part to replace. Check for other stored codes and fix those in a sensible order.
Symptoms
- Idle too high or too low
- Stalling
- Rough idle
Common causes
- Vacuum leak (very common)
- Dirty throttle body or IAC valve
- Failed IAC valve
- Idle relearn needed after a battery disconnect or throttle body cleaning
- Sticking throttle plate
How to diagnose P0507
- Clean the throttle body and run an idle relearn procedure.
- Check for vacuum leaks.
- Command idle speed with a scan tool and see if it responds.
How to fix it
- Clean the throttle body or IAC valve
- Fix vacuum leaks
- Replace the IAC valve
- Perform the idle relearn
Estimated repair cost
Likely repairs for P0507 run from about $80 to $450, depending on the cause.
| Repair | Typical range (parts + labor) |
|---|---|
| Diagnostic fee (scan + testing) | $100 - $200 |
| Idle air control valve / throttle body cleaning | $80 - $400 |
| Vacuum leak repair (hose/gasket) | $100 - $450 |
These are rough US estimates for an independent shop in 2026, based on typical parts prices and standard labor times. Dealers, big trucks, luxury brands and high-cost areas often run higher. They are not quotes. Use the repair cost estimator to adjust for your vehicle.
How serious is P0507?
Moderate severity
Usually drivable. Stalling at low speed can be dangerous.
Make-specific notes
Dodge / Jeep / Chrysler
P0507 is common on older Chrysler products with idle air control valves. Clean the throttle body and IAC passage, and check for vacuum leaks.
Honda
Many Hondas need an idle relearn after battery work; a dirty IACV can also cause high idle.
Always check open recalls and technical service bulletins for your VIN.
P0507 FAQ
Is a high idle dangerous?
It is mostly annoying and wastes fuel, but a very high idle can make an automatic creep harder against the brakes.
What does P0507 mean?
P0507 stands for "Idle Control System RPM Higher Than Expected". The actual idle speed is higher than the computer is asking for.
Can I drive with a P0507 code?
Usually drivable. Stalling at low speed can be dangerous.
How much does it cost to fix P0507?
It depends on the cause. The likely repairs for P0507 range from about $80 to $450 at an independent shop in the US, plus a diagnostic fee of roughly $100-$200. These are rough estimates; dealer prices and some vehicles run higher.
What is the most common cause of P0507?
The most common causes are: vacuum leak (very common); dirty throttle body or IAC valve; failed IAC valve.