What P0507 means
Idle Control System RPM - Higher Than Expected
How to diagnose
- Read freeze frame data. When P0507 set, your ECU snapshotted every sensor at that moment. This tells you what the car was doing when the fault triggered — RPM, load, coolant temp, throttle position, fuel trims. Almost always enough info to figure out the cause without further testing.
- Check for related codes. If you have P0507 plus other codes, fix the earliest one in the chain first — a single root cause often triggers multiple codes.
- Cheap fixes first. For most codes, the order is: inspect connectors + wiring (free), check for vacuum leaks (cheap), replace sensor (moderate), replace mechanical part (expensive). Follow that ladder before dropping money on parts.
Manufacturer-specific descriptions
Different manufacturers use P0507 for slightly different failure modes:
| AUDI | Defective or sticking Idle Air Control Motor, Intake Manifold Vacuum leaks, Carbon buildup in the Throttle Body air passages, Defective Coolant Temperature Sensor, Defective Charging System/Alternator, Defective Power Steering Pressure Switch |
| BMW | Idle Air Control System RPM Higher Than Expected |
| FORD | Idle Air Control System RPM Higher Than Expected |
| HONDA | Idle Control System RPM Higher Than Expected |
| MITSUBISHI | Idle Control System RPM higher Than Expected; ISC RPM higher than expected |
| NISSAN | Idle Control System RPM higher Than Expected |
| VOLKSWAGEN | Idle Speed High |
Read P0507 on your own car
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