Need help diagnosing P0171 2.0T Rough Idle
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1st Gear
Joined: Jan 2009
Posts: 26
From: Fort Myers, FL
Need help diagnosing P0171 2.0T Rough Idle
Hello everyone, my A4 B7 idles rough, I pulled the code P0171, the car has only 59k. Do you guys know what could be the problem? Is it the PCV or Maf sensor? Or could it be a vacuum leak? Where should I start looking?
By the way, coils are new, as well as the spark plugs.
By the way, coils are new, as well as the spark plugs.
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