Code
P0508
Idle
Circuit régulateur de ralenti — signal bas
Le circuit du régulateur de ralenti lit trop bas.
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Most likely causes
- Vanne IAC défectueuse
- Câblage
Symptoms you may notice
- Low idle
- Stalling
Checks to run
- Clean the IAC
- Test the valve
- Check wiring
Tools you may need
Throttle cleaner
Multimeter
Always diagnose before replacing. Codes share symptoms; confirm the cause with measurements before buying parts.