2002 R50. Stock exhaust. "Service Engine Soon" light on. My reader gives tells me that the problem exists and that it is also a Pending Code. I've done the gas cap check.














O2Sensor needs to be replaced right? It will not erase.

 

Quick searching brought this.

I have the PRE-Cat code. Been on my to do list for the longest.

 

Bentley manual says its" Post cat fuel trim system too rich Bank 1"