P0171 2011 Chevrolet Cruze - LTZ

Question

Engine light on. Replace rear and front 02 Sensor had a code of po171

Answer 1

Hi there,

This code indicates the fuel trim system is lean on bank 1. Here is a list of possible causes.

P0171 CHEVROLET - Fuel Trim System Lean Bank 1

Read more: https://www.autocodes.com/p0171_chevrolet.html