03-23-2014, 11:31 AM
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#72
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Lieutenant Colonel
Drives: Sprint car
Join Date: May 2013
Location: California
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2789 - P0420
2789 - P0420
2789 - P0420 | | Information saved in | DME | Fault code | 2789 - P0420 | Fault text | Catalytic-converter conversion, bank 1 | Fault description | Catalyst System Efficiency Below Threshold (Bank 1) | Condition for fault identification | Test condition: Diagnosis value above threshold K_KAT_OBD_WERT_MAX | | Terminal condition: Engine running - Condition idle or part-load | | Voltage condition: none | Condition for fault memory entry | none | Action in service | 1. Check exhaust system for leaks | | 2. No faults related to oxygen sensor or fuel system or VANOS should be present | | 3. Conduct oxygen sensor test routines, even if no oxygen sensor fault is present. | | 4. Replace catalytic conveter near engine | Fault effect and breakdown warning | MIL on after engine runs 2x | Driver information | Warning light: MIL | Service instruction | None |
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