Wednesday, May 20, 2020

2010 BMW 128i Convertible (E88) L6-3.0L (N52K) P Code Charts

P1131

2C6E – P1131

Information saved in

DME

Fault code

2C6E – P1131

Fault text

Oxygen sensor behind catalytic converter 2, ageing

Fault description

O2 Sensor Circuit Dynamic Test (Bank 2 Sensor 2)

Condition for fault identification

Test condition:

O2 sensor aging test

No secondary air injection,

0 < Speed 1.5 (sensor transition from rich to

lean too slow)

Action in service

0. Was the temperature drop caused by external factors

(driving into snow pile, ice on O2 sensor?) Thaw sensor,

clear all fault memory, continue driving!

1. Check O2 sensor heater: Contact resistance on plugs and

in wiring is excessive (DME – wiring harness – sensor)

2. Check wiring

3. Check O2 sensor plug (water or corrosion in the plug?

Repeatedly disconnect the plug and then re-insert it

FIRMLY)

4. Replace plug and/or wire as indicated

5. Replace the affected downstream (post-cat) O2 sensor

Fault effect and breakdown warning