Mechanics

FUEL SYSTEM

1996 GMC Sierra

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?
Avatar
Shaggydog1
March 19, 2008.




Yes it very well could. It will be a direct leak into the fuel system

Tiny
Jack42
Mar 19, 2008.


AD