The mechanic has run multiple tests and still runs fine. The only thing that wasn't running well was the o2 sensor and that was replaced . How could I get rid of this code and have my engine stop running lean.
Hi there
This code can also be the result of a faulty fuel pump. Here is a list of all the possible causes for this code.
P0171 VOLKSWAGEN - System Too Lean Bank 1 Read more: https://www.autocodes.com/p0171_volkswagen.html
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