Engine Performance problem
1996 GMC Sierra V8 Two Wheel Drive Automatic 212381 miles
I work at a small repair shop, I put a scanner on this vehicle and it came with these two codes po172b bank 1 system to rich, po175b bank 2 system to rich. Could this be caused by the fuel pressure regulator?
Wednesday, March 19th, 2008 AT 10:48 AM