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Audi a4 1.8 t. Code 171

  #1  
Old 02-08-2015, 07:06 AM
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Thumbs down Audi a4 1.8 t. Code 171

A4 1.8t. Code 171. System too lean. Help with problem did have four codes i put new 02 sensor Now only 171 Previous owner put new cone shaped air filter maybe something to do with that. I tried everything but replacing the other 02 sensor.
 
  #2  
Old 02-11-2015, 11:06 AM
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Join Date: Jan 2013
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