1996 GMC SIERRA FUEL SYSTEM

  • Tiny
  • shaggydog1
  • 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?

Wednesday, March 19th, 2008 AT 10:48 AM

1 Answer

  • Tiny
  • Jack42
  • Member

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

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Wednesday, March 19th, 2008 AT 2:14 PM

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