Power Deterioration

ECM-4201 THREE-WAY CATALYTIC CONVERTER (TWC) EFFICIENCY
POWER DETERIORATION

Checking for air leakage and checking components



Check for air leakage from the exhaust system. Checking For Air Leakage In the Exhaust System
Try a new three-way catalytic converter (TWC) if no fault has been detected in the exhaust system.

Remedy as necessary.


Fault-tracing information
Fault-tracing is not followed by verification for this fault.