Inspection Procedure

Visually and/or physically inspect following conditions;
- Vacuum hoses for splits, kinks and improper connections.
- Throttle body gasket.
- Gasket between intake manifold and cylinder head.
- Seals between intake manifold and fuel injectors.
- Exhaust system between HO2S and the three way catalyst for air leakage.
- Air cleaner filter element for excessive dirt or for any foreign objects
- Throttle body inlet for damage or for any foreign objects.
- Throttle bore and throttle plate for chocking and for any foreign objects.
- Restricted exhaust system.
  Good
  - Carefully re-do this troubleshooting guide steps.
  - If the diagnostics have been performed correctly with no failure found and no problems were found with the circuits or connectors, Go to "VERIFICATION OF REPAIR " procedure.
  No Good
  - Repair as necessary and Go to "VERIFICATION OF REPAIR " procedure.