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Bmw e38 sometimes become rough when idle and i smell strange smell outside near auxhaust

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

ginko
  • 19396 Answers

SOURCE: engine light stays on

That is sulfur smell.

Sulfur smell it is not necessarily indication of problems if not accompained by an eccessive fuel consumption.

See here some additional indications:

Feel, Hear, See, Smell: Smell

My car's exhaust

Auto Diagnosis

Posted on Jan 12, 2009

  • 1201 Answers

SOURCE: 2002 Highlander PO136 Error Code and Rough Idle

The po136 code is a bad 02 sensor, on cylinder bank #1
sensor #2, which is the downstream one. needs new one.

Posted on Jan 27, 2009

  • 2 Answers

SOURCE: Very Rough Idle and sometimes cuts off while idling




sounds like bad Idle Air control valve Not Cheap


wl2ac485003.jpg

Posted on Feb 21, 2009

  • 362 Answers

SOURCE: 1996 chevy c1500 w/rotten egg smell,loss of power,rough idle

Your catalytic converter is plugged up,  If you check the exhaust output at the tailpipe you will find it restricted.
Let me know if I  can assist further.
Lone99star

Posted on May 08, 2009

  • 38 Answers

SOURCE: 1998 BMW Z3 2.8 Idles rough when cold starting in wet weather

the problem could be in air mass flow sensor, but it's expensive

Posted on Jul 07, 2009

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sounds like bad Idle Air control valve Not Cheap


wl2ac485003.jpg

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