2. Exhaust Leak

Start the engine.

Inspect the exhaust system for leaks between the engine and the O2 Sensors. See EXHAUST SYSTEM article.

Are there any exhaust leaks? 

1. Yes  >> Repair or replace the leaking exhaust parts as necessary. See EXHAUST SYSTEM article.

   See POWERTRAIN VERIFICATION TEST - VER 2  .

2. No  >> Go To 3