P0506 Moderate Powertrain

Idle Control System RPM Lower Than Expected

Common Causes

Dirty throttle body reducing airflow at idle
Failed IAC valve
Vacuum leak causing lean surge-then-stall
Carbon buildup on throttle plate

Common Symptoms

Rough Idle Engine Stalling Engine Surging at Idle

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Quick Info

Code P0506
System Powertrain
Severity Moderate

Disclaimer

This information is for diagnostic guidance only. Always verify repairs with a qualified technician before performing safety-critical work.

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