p0507
Easy Fix
Honda · SUVs
Idle Air Control System RPM Higher Than Expected
Quick Answer
Error code P0507 on your Honda SUVs means: Idle Air Control System RPM Higher Than Expected. This is usually fixable — see the step-by-step guide below.
Affected Models
Likely Causes
  1. Vacuum leak raising idle speed
  2. Dirty or sticking throttle body and idle air control valve
  3. Faulty idle air control (IAC) valve or IACV solenoid
  4. Intake manifold gasket leak
  5. EVAP purge valve stuck open
How to Fix It
1
Clean the throttle body bore and blade with throttle body cleaner; remove carbon deposits
2
Check for vacuum leaks by spraying carb cleaner around intake connections and hoses while monitoring RPM
3
Inspect and clean the idle air control valve; replace if it sticks or does not respond to commands
4
Verify the EVAP purge valve is not stuck open by pinching the purge hose and monitoring idle
5
Perform an idle relearn procedure after cleaning by disconnecting the battery for 10 minutes, then driving through a warm-up cycle
Pro Tip
This is a common issue that most users can resolve without specialized tools. Try the first step before moving on to more complex solutions.
Parts You May Need
Throttle body gasket
Idle air control valve
Throttle body cleaner
Intake manifold gasket
PCV valve
Related Error Codes
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