2020 BMW 128i Coupe (E82) L6-3.0L (N51) Diagnostic Trouble Codes ( DTC ): Service instruction
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2C2E
2C2E - P2298
Information saved in
DME
Fault code
2C2E - P2298
Fault text
Oxygen sensor before catalytic converter 2, overrun check
Fault description
O2 Sensor Out of Range During Deceleration (Bank 2 Sensor 1)
Condition for fault identification
Test condition:
Implausible O2 sensor signal in overrun cutoff phase, no fault memories
Terminal condition: Terminal 15, engine on Voltage condition:
none
Condition for fault memory entry
Bank 2 O2 sensor before catalytic converter voltage less than 3.1 V or greater than 2.1 V with overrun injection deactivation active
Action in service
Visual inspection of wiring and plugs (water or corrosion in plug?)
1a. Repeatedly remove the plug and then FIRMLY insert it again
Electrical check of wiring
Check catalytic converter (FSD lean fault may be entered for the other bank)
Piston rings, injector valves, positive crankcase ventilation OK? FSD fault? Then continue there!
Replace wires or plugs on O2 sensors as indicated
Replace O2 sensor
Fault effect and breakdown warning
Driver information Warning light: MIL ON
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