What does code P0507 mean on a Kia and is it safe to drive?
P0507: Idle Air Control System RPM Higher Than Expected. Here's what it means on your Kia, what usually causes it, what repairs typically cost, and how safe it is 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 for your Kia
- 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 Kia, repairs for P0507 often fall between $50 and $400, depending on the cause and whether you use OEM or aftermarket parts. Labor rates vary by location.
Known issues on Kia
Kia P0507 mirrors Hyundai's experience—carbon buildup on the electronic throttle body is the dominant cause. Clean and perform the idle position learning procedure before considering throttle body replacement.
Most commonly affected models
Optima 2006–2015Sportage 2005–2015Forte 2010–2016