Spark Knock
- Check cooling system for overheating.
- Check ignition system. See TEST JB in SELF-DIAGNOSTICS - VILLAGER article.
- Check fuel delivery system. See TEST HC in SELF-DIAGNOSTICS - VILLAGER article.
- Check knock sensor. See TEST DG in SELF-DIAGNOSTICS - VILLAGER article.
- Check PCV system. See TEST HG in SELF-DIAGNOSTICS - VILLAGER article.
- Check for vacuum leaks.
- Check EGR system. See TEST HE in SELF-DIAGNOSTICS - VILLAGER article.