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Truck will idle some but not run

Tiny
JSUL77798
  • MEMBER
  • 1996 GMC C1500
  • 268,000 MILES
Have a 1996 gmc 1500 2wd 4.3 v6. Was driving along and it just died. Will start back up and idle, but dies as soon as you give it gas. Shows codes p0102, p 0122, p0174 and p1351. Checked voltage going into the MAF and TPS. Voltage seems good. TPS itself shows proper working voltage. Changed MAF with a junkyard unit. Still doing the same thing. Any other ideas? Please help!
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Tuesday, July 17th, 2012 AT 6:40 PM

3 Replies

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Install the original maf and forget the used one.

Check the fuel pressure, it may be low enough to start but nothign beyond that.

Roy
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Tuesday, July 17th, 2012 AT 6:50 PM
Tiny
JSUL77798
  • MEMBER
  • 2 POSTS
I chabged the fuel pump not 6 mos ago, but I will check the puel pressure. Thanks. Is it common that a fuel issue would bring up those specific codes?
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Tuesday, July 17th, 2012 AT 9:52 PM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
The 171, yes.

Roy
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Tuesday, July 17th, 2012 AT 10:12 PM

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