Question 1

What does P0507 mean?

Accepted Answer

P0507 - Idle Air Control System RPM Higher Than Expected. Engine idle speed is higher than PCM is commanding. Something letting too much air in at idle.

Question 2

What are the symptoms of P0507?

Accepted Answer

High idle speed, Check engine light, Won't idle down after revving

Question 3

What causes P0507?

Accepted Answer

Vacuum leak (most common), Dirty throttle body, IAC valve stuck open, Intake gasket leak, PCV valve stuck open

Question 4

How much does it cost to fix P0507?

Accepted Answer

Typical repair cost: $0-$400. High idle is almost always an air leak. Check vacuum hoses, PCV valve, brake booster hose, intake gaskets.

P0507 — Idle Air Control System RPM Higher Than Expected

Don't guess — diagnose P0507 the right way

Common symptoms of P0507

Common causes of P0507

Repair cost & difficulty

Vehicles commonly affected

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