what is a P0172 on a chevrolet impala

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Carguy1 · Answer 1 · 2018-01-03T19:40:52+0000

HI there

This code means the fuel trim is to rich on bank 1. This could be the result or a bad O2 sensor or some fuel issue like a leaking fuel injector.

P0172 CHEVROLET - Fuel Trim System Rich Bank 1

Read more: https://www.autocodes.com/p0172_chevrolet.html