MasterTuning Fault code dictionary (DTC)

P0507 — Idle Control System RPM Higher Than Expected

Severity: Warning Can you drive? With caution: limp mode possible, have it checked soon Make: All makes (OBD-II standard)
MeaningThe engine computer noticed that the idle speed is running significantly higher than what is programmed for normal warm-up or stop conditions. This usually means unwanted extra air is entering the engine or the throttle system is not closing down completely as commanded.
FamilyPowertrain (P)

Typical symptoms

The engine idles much faster than normal when you stop at a light
The car feels like it wants to creep forward on its own while in drive
Engine RPMs hang high for a few seconds when you take your foot off the gas

Common causes

A vacuum leak in the intake hoses or gaskets letting unmeasured air into the engine
Dirt, carbon buildup, or a sticky throttle plate preventing the valve from sealing shut
A faulty idle air control valve or an electronic throttle body acting up

What to do

Have a mechanic check the intake system for loose hoses and inspect the throttle plate for carbon buildup. It is best to look at this soon to prevent erratic idling and extra wear on your transmission when shifting into gear.

Frequently asked questions

What does code P0507 mean?

Idle Control System RPM Higher Than Expected. The engine computer noticed that the idle speed is running significantly higher than what is programmed for normal warm-up or stop conditions. This usually means unwanted extra air is entering the engine or the throttle system is not closing down completely as commanded.

Can I keep driving with code P0507 active?

With caution: limp mode possible, have it checked soon

Common causes — P0507

A vacuum leak in the intake hoses or gaskets letting unmeasured air into the engine Dirt, carbon buildup, or a sticky throttle plate preventing the valve from sealing shut A faulty idle air control valve or an electronic throttle body acting up

How do you fix code P0507?

Have a mechanic check the intake system for loose hoses and inspect the throttle plate for carbon buildup. It is best to look at this soon to prevent erratic idling and extra wear on your transmission when shifting into gear.

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