Mechanics

I TOOK MY CAR TO GET A MODULE BECAUSE IT WOULD NOT START. AFTER THEY FIXED IT STARTED RUNNING AWFUL NOW THEY SAY ITS 02SENSOR?

1999 BMW 323 • 132,000 miles

RUNS ROUGH AFTER MODULE REPLACEMENT. NOW THEY SAID ITS THE 02 SENSOR. IS THAT POSSIBLE?
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Holguing7
February 18, 2012.



It is possible for a bad O2 sensor to cause erratic idling but it would usually trigger the MIL.

KHLow2008
Feb 18, 2012.