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