What does code P0507 mean on a Hyundai and is it safe to drive?
P0507: Idle Air Control System RPM Higher Than Expected. Here's what it means on your Hyundai, 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 Hyundai
- 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 Hyundai, 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 Hyundai
Hyundai P0507 typically results from carbon buildup on the electronic throttle body. Cleaning the throttle bore and performing an idle relearn resolves most cases; a failed ISA motor is a secondary cause.
Most commonly affected models
Sonata 2006–2015Elantra 2007–2016Tucson 2005–2015