90-823225--1 10965E-124 - ELECTRONIC FUEL INJECTION (MULTI-PORT AND THROTTLE BODY)
DETONATION/SPARK KNOCK (continued)
CHECK ENGINE FOR:
1. Low oil level.
2. Excessive oil in the combustion chamber. Valve seals for leaking.
3. Perform a compression test.
4. Combustion chambers for excessive carbon build-up. Remove carbon with top engine cleaner.
5. Proper camshaft timing.
6. Incorrect basic engine parts such as cam, heads, pistons, etc.
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