Engine rev up

Tiny
FREDMAN01
  • MEMBER
  • BMW 328
I have a 1997 BMW 328i with 126,000 miles and it is a manual transmission. My car has recently had spells were it will rev up while driving and/or when setting idle. This has occured in all gears and neutral. I have replaced all 4 O2 sensors and it still is happening. What am I missing? Do I need to replace the mass air sensor also? Please advise. Thanks you guys have a great page.
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Tuesday, May 15th, 2007 AT 8:08 PM

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Tiny
DR. HAGERTY
  • MEMBER
Start with extracting the fault codes and repost
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Saturday, July 21st, 2007 AT 4:12 PM

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