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Discussion Starter #1 (Edited)
I originally got this code about 6 months ago. I replaced both the intake and exhaust CPS clearing the error only to have it return after driving anywhere's from 5min to an hour after. Even before the sensors were swapped there was no issues with starting or steady idling, just an annoying "check engine" light. Acceleration is steady through all ranges. The only thing I have noticed, and I could be just hearing things is when cold starting the engine seems to rev for a split second higher than I thought was usual before returning to idle. Is a cable available for the exhaust CPS? Could it be cracked?

Year: 2000
Model: 323i
Manual 5 Speed
Milage: 126,000 miles
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