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Ask GM Tech (Cam) Your Own Question
GM Tech (Cam)
GM Tech (Cam), Pontiac Technician
Category: Pontiac
Satisfied Customers: 29427
Experience:  GM Grand Master Technician 2007. 14 years experience.
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How do I fix a po171

Customer Question

how do I fix a po171 cod
Submitted: 1 year ago.
Category: Pontiac
Expert:  GM Tech (Cam) replied 1 year ago.

Hi there, I am Cam.

Almost always this code, Bank 1 lean code, is caused by either a plugged fuel filter or a weak fuel pump. Your first course of action is to replace the fuel filter and evaluate the issue. Should the issue return then we need to look at a fuel pump assembly.

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