Originally Posted by slemmer
My buddy's e90 suddently had his CEL come on after driving it this morning. The engine sounds rough at idle and seems to go away if I increase the RPM. I hooked up my OBC-II diagnostic tool to see what code would come up and nothing shows.
Is there a newer version of the OBC for 2007+? Unless it's some other engine fault that the OBC scanner cannot see and requiring a visit to the dealer or indy.
I could have it diagnose, let me know.
drop me a line.