Check Engine Light, codes P0171 & P0174
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From: mass
Check Engine Light, codes P0171 & P0174
I had my check engine light checked today and came up with these codes. The description was Lean Bank 1, Lean Bank 2. This light has come on and off over the last 3 months. I dont drive the car very often now so It may have only gone 700 miles during this time. Any ideas as to what it may be. Thanks.
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AudiWorld Member
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From: mass
Re: Think they are both bank 1-sounds like o2 sensor gone or going
I am leaning more toward the MAF sensor as it is showing on both banks and this was one of the suggestions on a website that had the information on the codes.
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Bank 1 according to this
16555
P0171
Fuel Trim,Bank1 System too Lean
16556
P0172
Fuel Trim,Bank1 System too Rich<ul><li><a href="http://www.bentleypublishers.com/tech/audi/audi.dtc.table.htm">http://www.bentleypublishers.com/tech/audi/audi.dtc.table.htm</a</li></ul>
P0171
Fuel Trim,Bank1 System too Lean
16556
P0172
Fuel Trim,Bank1 System too Rich<ul><li><a href="http://www.bentleypublishers.com/tech/audi/audi.dtc.table.htm">http://www.bentleypublishers.com/tech/audi/audi.dtc.table.htm</a</li></ul>
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