2020 BMW 128i Coupe (E82) L6-3.0L (N51) Diagnostic Trouble Codes ( DTC ): P Code Charts Service instruction
none
P2198
2C2C - P2198
Information saved in
DME
Fault code
2C2C - P2198
Fault text
Oxygen sensor before catalytic converter 2, system check
Fault description
O2 Sensor Signal Biased/Stuck Rich (Bank 2 Sensor 1)
Condition for fault identification
Test condition:
Oxygen sensor before catalytic converter 2, system check End of start phase
O2 sensor drifts toward rich
Terminal condition: Terminal 15, engine on Voltage condition:
none
Condition for fault memory entry
After trim control fault; sensor indicates more than 18% too rich
Action in service
Check sensor wiring for short circuit; otherwise replace the suspect sensor
Fault effect and breakdown warning
Driver information Warning light: MIL ON
