Join Now
International Automotive Technicians Network

P0172 Diagnostic Trouble Code Discussion for March 2015

Fuel System Rich (Bank 1)


Note: This is a professional automotive technician's resource.
Vehicle Owners: If you are seeking an automotive repair professional to service your vehicle, visit the iATN Repair Shop Finder.

Trouble Ticket Help Requests for DTC P0172
Help Request Posted
2006 Ford E-250 5.4L MIL Lamp on VIN: 1FTNE24L16
P0172: rich bank 1. ... with p0172 and p0175 both banks rich. HO2S data is normal. LTFT is about-18.8 for both banks. STFT is between -2 and -10 for both banks. fuel pressure is 30psi. Fuel rail pressure sensor reads 38.8psi and has no sign of leak at vacuum line. maf voltage is ...
March 03, 2015
2008 Pontiac G5 2.2L MIL Lamp on VIN: 1G2AL18F28
P0172: Fuel system rich. ... and the downstream 02 sensor harness on the vehicle side had been ripped off because it was hanging. The car had multiple codes. I repaired the harness and checked the 02 sensors circuits and they are operating as designed. cleared codes and test drove. Th...
March 03, 2015
2000 Dodge Stratus SE 2.4L Poor Idle Quality, Misfire
P0172: Fuel System Rich (Bank 1). Need some help with this one please,car comes in needed water pump,my first 2.4 and what a chore!!! Everything tight no room to work and had to support motor pull mounts and drop engine just for room to get crank shaft pulley off.As I'm going about this pain i...
March 14, 2015
2008 Chevrolet Impala LTZ 3.9L Hesitation, Cuts out, Stall VIN: 2G1WS55328
P0172: Fuel Trim System Rich. ... entry, so here it is. [...] Officer took off for pursuit on highway, and when it reached 60mph it flattened out and started to decelerate. They played with the throttle a little and it accelerated again. Sometimes during idle, they said it would die. Bro...
March 23, 2015