Operation CHARM: Car repair manuals for everyone.

P2197


The signal from oxygen sensor 1 (cylinder bank 2) is shifted towards 'Lean'. There is a signal above the permissible limit value.


Possible cause:

- The signal of the oxygen sensor upstream of the catalytic converter of the left cylinder bank is shifted towards 'Lean'.
Affected functions:

- Engine diagnosis
- Exhaust system

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Test 1: Check exhaust system for leaks.

1. Check exhaust system for leaks.
Warning!Communication with ECU required.