× Auto Repair Pros Member Benefits TechHelp Knowledge Base Forums Resources My iATN Marketplace Chat Pricing About Us Join Industry Sponsors Video Members Only Repair Shops Auto Pro Careers Auto Pro Reviews
Join Now
International Automotive Technicians Network

P0172 Diagnostic Trouble Code Discussion for January 2014

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
2001 Chrysler Town & Country EX 3.8L MIL Lamp on VIN: 2C4GP74L91
P0172: Fuel System Rich (Bank 1). Vehicle came in for MIL on. (code P0172 set) Replaced faulty EGR. Thought all was well. Customer said the light came on again a week later. Found code P0420 set. Checked pre and post cat o2 signals and found post signal pretty well following the the pre cat si...
January 06, 2014
2003 GMC Envoy XL SLE 4.2L Hesitation, Cuts out, Stall, MIL Lamp on VIN: 1GKET16S63
P0172: fuel system too rich bank 1. Got a tough GM problem here. Customer brought vehicle in complaining of a stall on idle. Took it for a test drive and on idle, found that it cut out to near stall when the AC clutch engaged, works and drives fine otherwise. Tested fuel pressure, reads 58psi. T...
January 11, 2014