I recently installed a 13 button OBC in my 91' 318is and the readings for AVG/MPG and RANGE are way off(mpg=really low,range=too high).
The OBC came out of an 88' 325is.
Is there a difference between coding plugs for the 4cyl and 6cyl? Did the 4cyl even come stock w/ the OBC? This is my first 4cyl e30 that didn't have the OBC.
TIA
The OBC came out of an 88' 325is.
Is there a difference between coding plugs for the 4cyl and 6cyl? Did the 4cyl even come stock w/ the OBC? This is my first 4cyl e30 that didn't have the OBC.
TIA
Comment