2002 buick rendezvous code p0171

Question

Just today it stopped turning on it starts but turns back off and a real large amount of gas smell near the driver back door and near the gas tank my ? Is is it a simple fix or ?

Answer 1

HI there

This code is a fuel mixture code that takes some time to develop. It is possible low fuel pressure or a bad fuel pump is causing the issue. Another common cause is the mass air flow sensor. Here is a list of some of the other possible causes.

P0171 BUICK - Fuel Trim System Lean Bank 1

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