2012 Mitsubishi P0507: What It Means & Is It Safe to Drive?
P0507 on the 2012 Mitsubishi: 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 2012 Mitsubishi
- 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 2012 Mitsubishi, repairs for P0507 typically fall between $50 and $400, depending on the root cause and labor rates in your area.
Known issues on Mitsubishi
Mitsubishi 4B12 and V6 electronic throttle body carbon is the primary P0507 cause. On Lancer Evo X 2.0T, a boost leak from intercooler piping is a common alternative cause—inspect all boost connections before cleaning the throttle body.
Most commonly affected models
Outlander 2007–2013Lancer 2008–2015Eclipse 2006–2012