P0507 on a Toyota: Causes, Fixes & Repair Cost

🟠 Moderate severity · drivable

Drivable, but the engine idles too fast, which wastes fuel and makes the car feel like it wants to creep forward.

What P0507 means on a Toyota

On a Toyota, P0507 means the engine is idling faster than the computer expects. Too much unmetered air is getting into the engine at idle, usually through a vacuum leak or a dirty throttle body. The car still drives, but it idles high and burns extra fuel.

Is P0507 common on Toyotas?

P0507 shows up on Toyotas like the Camry, Corolla, Tacoma, and 4Runner, especially on higher-mileage cars. Rubber vacuum hoses dry out and crack with age, and carbon builds up in the throttle body. On older models the idle air control valve is a common wear item.

Commonly reported on: Camry, Corolla, Tacoma, 4Runner.

Symptoms

Check engine light is on
Engine idles too fast
Car creeps forward at stops
Engine surges at idle

Common causes

most common: Vacuum leak
common: Carbon buildup in the throttle body
common: Faulty idle air control (IAC) valve on older models
less common: Leaking PCV valve or hose

How to fix it

Fix	DIY?	Typical cost
Find and repair vacuum leaks	Yes	$10–100
Clean the throttle body	Yes	$10–40
Replace a faulty idle air control valve	Yes	$50–200

Frequently asked questions

Can I drive my Toyota with a P0507 code?

Yes, but the high idle wastes fuel and makes the car creep at stops. Fix it soon.

Why does P0507 happen on Toyotas?

Vacuum leaks from aged hoses and carbon buildup in the throttle body are the most common reasons. Older models can also have a failing idle air control valve.

How much does it cost to fix P0507 on a Toyota?

Usually $10–100 for a vacuum leak fix, or $50–200 if the idle air control valve needs replacing.