P0507
Idle Air Control System RPM Higher Than Expected
1992-1998 BMW 325i E36 2.5L I6 M50 🇷🇺
Moderate SeverityPowertrain
Description
The idle speed is consistently above the target RPM.
Symptoms
- High idle speed
- Engine racing at idle
Common Causes
- Vacuum leak (most common)
- IAC valve stuck open
- Throttle plate not closing fully
- Intake gasket leak
Diagnostic Steps
- Check for vacuum leaks
- Inspect throttle plate
- Test IAC valve
- Check intake gaskets
Repair Notes
Find and fix vacuum leak. Clean throttle body. Replace IAC if stuck open.
Related Codes
Other Powertrain Codes
- P0001Fuel Volume Regulator Control Circuit/Open
- P0002Fuel Volume Regulator Control Circuit Range/Performance
- P0003Fuel Volume Regulator Control Circuit Low
- P0004Fuel Volume Regulator Control Circuit High
- P0010Intake Camshaft Position Actuator Circuit/Open Bank 1
- P0011Intake Camshaft Position Timing Over-Advanced Bank 1
- P0012Intake Camshaft Position Timing Over-Retarded Bank 1
- P0013Exhaust Camshaft Position Actuator Circuit/Open Bank 1
- P0014Exhaust Camshaft Position Timing Over-Advanced Bank 1
- P0015Exhaust Camshaft Position Timing Over-Retarded Bank 1
P0507 on Other Vehicles
Common Questions
What does code P0507 mean on a 1992-1998 BMW 325i E36?
P0507 stands for "Idle Air Control System RPM Higher Than Expected". The idle speed is consistently above the target RPM.
What are the symptoms of P0507 on a BMW 325i E36?
Common symptoms of P0507 include: High idle speed, Engine racing at idle.
What causes P0507 on a 1992-1998 BMW 325i E36?
Common causes of P0507 include: Vacuum leak (most common), IAC valve stuck open, Throttle plate not closing fully, Intake gasket leak.