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6E–294 6VE1 3.5 ENGINE DRIVEABILITY AND EMISSIONS D DTC P0430 can be cleared by using the Tech 2 “Clear Diagnostic Aids Check for the following conditions: D Poor connection at PCM – Inspect harness connectors D Damaged harness – Inspect the wiring harness for Reviewing the Failure Records vehicle mileage since the Test Description Number(s) below refer to the step number(s) on the Ign”, test may be encountered in areas where test D Allow the engine to warm up completely. D With the vehicle in “Park”, monitor mass air flow on D Operate the vehicle in second or third gear to remain reading of over 15 g/second for the duration of the The “TWC Monitor Test Counter” displayed on the Tech 2 DTC P0430 – TWC System Low Efficiency Bank 2
Step Action Value(s) Yes No 1 Was the “On-Board Diagnostic (OBD) System Check” — Go to Step 2 Go to OBD System Check 2 Are any other DTCs set (such as P0160)? — Diagnose other DTC(s) first Go to Step 3 3 1. Visually and physically inspect the three-way catalytic converter for damage. Check for the D dents D severe discoloration caused by excessive D holes D internal rattle caused by damaged catalyst 2. Also, ensure that the three-way catalytic converter is a proper original equipment manufacturer part. Did your inspection reveal a problem? — Go to Step 6 Go to Step 4 4 1. Visually and physically inspect the exhaust system between the three-way catalytic converter and the 2. If a problem is found, repair as necessary. Did your inspection reveal a problem? — Go to Step 7 to verify repair Go to Step 5 |