Fault code on 2nd day of ownership
12-29-2022, 07:24 AM
#1
AudiWorld Newcomer
Thread Starter
Fault code on 2nd day of ownership
Hi guys after some help. Only just joined group and recently got a a4 1.8t. Second day driving and threw up this "P0171 System Too Lean (Bank 1).
How do i fix this? Read somewhere could be something to do with pcv system, can u delete this and put catch can?
How do i fix this? Read somewhere could be something to do with pcv system, can u delete this and put catch can?
12-30-2022, 04:45 AM
#2
AudiWorld Super User
Thanks for posting what the code means. Too many people don't.
Often will be caused by an air leak, somewhere after the MAF sensor (in the filter box). Inspect hoses, check valves, look for splits in rubber ducts, and PCV parts.
Often will be caused by an air leak, somewhere after the MAF sensor (in the filter box). Inspect hoses, check valves, look for splits in rubber ducts, and PCV parts.
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