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    Results 1 to 4 of 4
    1. #1
      Join Date
      Jun 2010
      Location
      Deployed
      Posts
      3,280
      Country Flag: United States

      GMPP harness help!

      Gents I took my LS7 to the dyno and it ran great. 549hp at 6200rpms. The tuner brings the car to 7000rpms and the check engine goes on with a P2101 and P1516 code. He resets it and does it again. I can drive it all day long normally (no WOT to redline) and not have codes pop. I have the TB connector disconnected and noticed pin C has continuity to ground. I peeled back insulation all all looks ok, but I also noticed a bare stranded wire that is inside the bundle with the wires. Where does this go? Is pin C supposed to have continuity to ground?

      Its ts a GMPP harness and I’m stumped!
      1970 Camaro/DSE build


      Are you driver enough? Maybe....come on blue!
      https://www.pro-touring.com/threads/...71#post1147371

    2. #2
      Join Date
      Aug 2004
      Location
      Jacksonville, FL
      Posts
      1,651
      Country Flag: United States
      Check out this thread- https://www.corvetteforum.com/forums...16-solved.html Hope it helps!
      Chris
      1968 Chevy Camaro SS
      LS3/T56 DSE suspension


    3. #3
      Join Date
      Jun 2010
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      3,280
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      I hope a new TB fixes it. I went ahead and ordered a new one. It’s just that this one is new...Now if it’s can figure out if pin C is supposed to have continuity to ground.
      1970 Camaro/DSE build


      Are you driver enough? Maybe....come on blue!
      https://www.pro-touring.com/threads/...71#post1147371

    4. #4
      Join Date
      Jun 2010
      Location
      Deployed
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      3,280
      Country Flag: United States
      Well I swapped the TB and spun it to 6800-7000rpms a few times and no CEL. I’m hoping the TB was the issue, but I did check and wrap the pins. I’ll drive it again today.

      1970 Camaro/DSE build


      Are you driver enough? Maybe....come on blue!
      https://www.pro-touring.com/threads/...71#post1147371






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