The Quick Answer above is the generic definition. What follows is the model-specific detail for the Honda models that log P0507.
DTC/P0507·Honda
P0507 on Honda: Causes, Symptoms and Fix Cost
Quick Answer
Moderate SeveritySafe to drive (short-term)Honda
P0507 on a Honda 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.
Typical repair cost, all makes€5 - €550
Connect any standard Bluetooth OBD2 adapter to your Honda and Skanyx tells you what P0507 means on that engine, whether it is safe to keep driving, and what the fix should cost. Free on iPhone and Android.
Get Skanyx freeWhat does P0507 mean on a Honda?
Honda Civic
2006-2024The eighth-generation Civic with the R18A uses a drive-by-wire electronic throttle body, so there is no separate idle air control valve on it: a high idle traces to carbon in the throttle bore or to lost idle adaptation rather than to a stuck valve. The 1.5T is electronic throttle as well. After cleaning the bore, run Honda's idle relearn: disconnect the battery for 10 minutes, reconnect, then idle for 10 minutes with the air conditioning off.
What causes P0507 on a Honda?
Beyond the generic causes listed on the main P0507 page, these are the patterns noted for Honda models:
Honda CivicCarbon in the electronic throttle bore on R18A
Honda CivicIdle adaptation lost after a battery disconnection or throttle body cleaning
How to diagnose P0507 on a Honda 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 Honda? (EUR)
Estimated repair costs for P0507 in EUR, compiled across makes. Honda parts and labour usually land towards the lower end of each range.
Prices estimated as of March 2026. Costs vary by region, vehicle, and shop.
Codes related to P0507
These codes are often seen alongside P0507 or point to related issues, on any make:
Looking for the full P0507 reference (all makes, full diagnosis flow, complete repair cost matrix)?
See the main P0507 guideSkanyx · Honda
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