Code
P0021
Variable valve timing
Calage arbre à cames avancé — Rangée 2
L’arbre à cames d’admission rangée 2 est trop avancé.
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Most likely causes
- Huile basse ou sale
- Solinéide VVT défectueux
Symptoms you may notice
- Check engine light
- Rough idle
Checks to run
- Check oil
- Test the VVT solenoid
- Check wiring
Tools you may need
OBD-II scanner
Multimeter
Always diagnose before replacing. Codes share symptoms; confirm the cause with measurements before buying parts.