The efficiency of the right catalytic converter is insufficient. (function chain) (P0422)

The efficiency of the right catalytic converter is insufficient. (function chain) (P0422)


Possible cause:

- Catalytic converter of right cylinder bank
Affected functions:

- Engine diagnosis
- Exhaust system

-------------------------------------------------

Test 1: Effect of the catalytic converter for the right cylinder bank

1. Effect of the catalytic converter for the right cylinder bank

Test 1.1: Check component G3/4 (Right O2 sensor, before TWC [KAT]).

Test 1.2: Check component G3/6 (Right O2 sensor, after TWC [KAT]).

1.1. Check component G3/4 (Right O2 sensor, before TWC [KAT]).
Warning!Communication with ECU required.


1.2. Check component G3/6 (Right O2 sensor, after TWC [KAT]).
Warning!Communication with ECU required.