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audi b6 a4 3.0 problem?

Source: Yahoo! Answers

my 2002 audi a4 3.0 with 112000 miles on it had a problem from they day i bought it...when i bought the engine was misfiring after when i did a check up they said i need to change the o2 sensor i changed it...after 2 weeks again the check engine light pops and says P0431... Read More

  • check the coil pack, sometimes the cylinder does not fire up from it so it back fires. happend to my 2000 a4 Read More
  • well if you get a small can of propane release the propane near were you hear the vacuum leak (if you think you have one) if the rpms start climbing you have a leak..also check spark plugs and don't by some cheap ones you own a high quality audi/engine they need high Quality parts for longevity and might want to clean... Read More

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