Misfiring of cylinder 3 : Worsening of exhaust emission values after engine start (P0303)

Misfiring of cylinder 3 : Worsening of exhaust emission values after engine start (P0303)


Possible cause:

- Combustion misfirings
Affected functions:

- Engine diagnosis

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Test 1: Combustion misfirings

1. Combustion misfirings
Warning!Communication with ECU required.