Spark plug fault

[Dasha999]

I have a 21b154 spark plug wear limit I have changed the plugs but even with obd scanner I can not clear the fault. I done an ecu reset disconnected the battery fault still returns.any advice on clearing the fault would be much appreciated. Car runs perfect.

[danb79]

Dasha999 said:

I have a 21b154 spark plug wear limit I have changed the plugs but even with obd scanner I can not clear the fault. I done an ecu reset disconnected the battery fault still returns.any advice on clearing the fault would be much appreciated. Car runs perfect.

Which OBD scanner are you using?

It could be that you need a more sophisticated one

[E-bmw]

Dasha999 said:

I have a 21b154 spark plug wear limit I have changed the plugs but even with obd scanner I can not clear the fault. I done an ecu reset disconnected the battery fault still returns.any advice on clearing the fault would be much appreciated. Car runs perfect.

https://www.babybmw.net/threads/drivetrain-error-spark-plugs.155921/