P0507 means the engine is idling significantly higher than the ECU expects. Normal idle is typically 600-800 RPM. When the ECU detects idle speed consistently above its target by 200+ RPM and cannot bring it down, it sets P0507. The most common causes are vacuum leaks, dirty throttle body, or a stuck idle air control valve.
DTC/P0507·Toyota
P0507 on Toyota: Causes, Symptoms and Fix Cost
Quick Answer
Moderate SeveritySafe to drive (short-term)Toyota
P0507 on a Toyota means the engine is idling significantly higher than the ECU expects. Normal idle is typically 600-800 RPM. When the ECU detects idle speed consistently above its target by 200+ RPM and cannot bring it down, it sets P0507. The most common causes are vacuum leaks, dirty throttle body, or a stuck idle air control valve.
Repair cost on Toyota€5 - €550
What does P0507 mean on a Toyota?
Toyota Camry
2007-2024The Camry 2AR-FE uses an electronic throttle body without a separate IAC valve. P0507 is almost always caused by a dirty throttle body or vacuum leak. Toyota's idle relearn procedure requires idling with AC off, all accessories off, for 5 minutes after cleaning. The PCV valve hose is a common vacuum leak source.
What causes P0507 on a Toyota?
Beyond the generic causes listed on the main P0507 page, these are the Toyota-specific patterns we see most often:
Toyota CamryCarbon buildup on electronic throttle body
Toyota CamryPCV valve hose deterioration causing vacuum leak
How to diagnose P0507 on a Toyota with OBD2
Follow these steps to pinpoint the root cause of P0507:
- Check for vacuum leaks: listen for hissing sounds, spray brake cleaner around intake manifold gaskets and hoses while engine runs. RPM change indicates a leak
- Inspect throttle body for carbon buildup. Remove intake boot and look inside. Clean with dedicated throttle body cleaner if dirty
- Check idle RPM with scan tool live data. Note if it drops to normal range after the throttle body cleaning
- If throttle body is clean and no vacuum leaks, test the IAC valve (if equipped). Command it open/closed with scan tool and listen for operation
- Check coolant temperature sensor reading vs actual temperature. A faulty sensor reading cold will cause the ECU to command high idle
- After any repair, perform an idle relearn procedure per manufacturer instructions
How much does P0507 cost to fix on a Toyota? (EUR)
Estimated repair costs on a Toyota (Toyota costs align with the average for this code across makes).
Prices estimated as of May 2026. Costs vary by region, vehicle, and shop.
Related codes that often appear with P0507 on Toyota
These codes commonly cluster with P0507 on Toyota vehicles:
FAQ: P0507 on Toyota
Why does my car idle so high?
The most common cause is a vacuum leak letting extra air into the engine, or carbon buildup preventing the throttle plate from fully closing. The ECU tries to compensate but can't bring RPM down to target.
Can I fix P0507 by cleaning the throttle body?
Often, yes. Carbon buildup on the throttle plate and bore prevents it from closing fully, keeping idle high. A 15-minute cleaning with dedicated throttle body cleaner resolves P0507 in many cases.
Is high idle dangerous?
Not dangerous, but annoying and wasteful. On automatic transmissions, high idle causes harsh gear engagement. It wastes fuel and can accelerate wear on engine mounts and transmission components.
Do I need to do an idle relearn after fixing P0507?
Usually yes. After cleaning the throttle body or replacing the IAC valve, the ECU needs to relearn the correct idle position. Some cars do this automatically over a few drive cycles. Others require a specific procedure with a scan tool.
Looking for the full P0507 reference (all makes, full diagnosis flow, complete repair cost matrix)?
See the main P0507 guideSkanyx · Toyota
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