Having problems with your Chevrolet Silverado 1500 ?

Code po 171 chevy silverado 5.3 - Silverado 1500 Chevrolet Cars & Trucks

Posted / edited by AnonymousUser on : 17-02-2020

Answers :

Code 171 is for a problem where the O2 sensor is telling the computer the fuel trim is too lean on bank one and the computer can not make it go to rich.
The computer controls the on time for the injectors to adjust the fuel mixture.
The problem could be one of the O2 sensors or something with the injectors or the fuel pressure.
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