2882 Mixture Preparation Bank 1
#2
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My Ride: 05 530i M54
Model Year: 05 530i
Engine: 3.0 M54
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You have a vacuum leak. I would do a smoke test to pin point it. If you have not changed the PCV system before plan on doing it also if it's not where your leak is. I would recommend to not change one part plan one changing them all because if they are old you will break a hose replacing just one piece.
You didn't post your year and model so I can't help you any further
You didn't post your year and model so I can't help you any further
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You have a vacuum leak. I would do a smoke test to pin point it. If you have not changed the PCV system before plan on doing it also if it's not where your leak is. I would recommend to not change one part plan one changing them all because if they are old you will break a hose replacing just one piece.
You didn't post your year and model so I can't help you any further
You didn't post your year and model so I can't help you any further
PCV was changed 9/4/19 at 187,000 miles. Intake boot and fuel injection idle air control valve gasket was genuine everything else OE or Rein.
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Just the PCV and not the whole system? I would do a smoke test and proceed with what you find. If only the PCV was replaced there's a good chance the tubes are your corporate or the intake boot. I am not suggesting you just change parts. I am suggesting you diagnose with a smoke test first then go forward.
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Originally Posted by donpb
Is it possible to pass a smoke test but still have a vacuum leak?
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