FUEL SYSTEM

1996 GMC Sierra

Tiny

shaggydog1

March, 19, 2008 AT 10:48 AM

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?

FOUND 206 RELATED QUESTIONS

1 Answer

Tiny

Jack42

March, 19, 2008 AT 2:14 PM

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

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