2023 Subaru P0507: What It Means & Is It Safe to Drive?
P0507 on the 2023 Subaru: Idle Air Control System RPM Higher Than Expected. Here's what it means, what usually causes it, what repairs typically cost, and whether it's safe to keep driving.
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What this code means
Idle speed is higher than the PCM expects. Often caused by a vacuum leak or dirty IAC valve.
Common causes on the 2023 Subaru
- Vacuum leak
- Dirty or faulty idle air control valve
- Throttle body carbon buildup
Symptoms
- High idle
- Check Engine Light
- Possible surging
Typical fixes
- Find and fix vacuum leaks
- Clean or replace IAC valve
- Clean throttle body
Repair cost range
For a 2023 Subaru, repairs for P0507 typically fall between $50 and $400, depending on the root cause and labor rates in your area.
Known issues on Subaru
Subaru P0507 on EJ25 engines is most often a dirty IACV or a failed throttle position sensor. After cleaning the throttle body, the idle relearn procedure (10 ignition cycles with specific timing) is required—skipping it will leave the idle high even after a clean part is installed.
Most commonly affected models
Outback 2006–2012Legacy 2006–2012Forester 2006–2011