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P0172 Diagnostic Trouble Code Discussion for January 2021

Fuel System Rich (Bank 1)


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Trouble Ticket Help Requests for DTC P0172
Help Request Posted
2009 Chevrolet Impala LT 3.9L Hesitation, Surge, MIL Lamp on VIN: 2G1WC57M59
P0172: . ... p0121 p1101 and running rich p0172. Air filter housing was not attached so air was bypassing filter. Maf and honeycomb were dirty and appeared to have been wet. Preliminary maf Readings...
January 20, 2021
2009 Chevrolet Impala LT 3.9L Hesitation, Surge, MIL Lamp on VIN: 2G1WC57M59
P0172: . ... while driving will stumble with codes for maf and tps issues p0101 p0121 p1101 and running rich p0172. Air filter housing was not attached so air was bypassing filter. Maf and honeycomb were dirty and appeared to have been wet. Preliminary maf Readings...
January 21, 2021
2010 Chevrolet Equinox LS 2.4L MIL Lamp on VIN: 2CNFLCEW7A
P0172: Fuel system Rich. ... Suggestions / Testing advice. This Equinox 2.4 Throws a P0172 Fuel system Rich, which is Varified using GDS LTFT -25/30 and STFT -10/20 at all times ! This vehicle is well known for high Pressures Pumps leaking Internally with a Fuel smell in the Oi...
January 31, 2021