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  1. jfkelley

    LS Swap P0171 Code Bank 1 too lean HELP

    I did that and double checked, and triple checked the grounds .. when I move the coil pack, connection, harness back-and-forth the truck stumbles so I’m gonna assume there’s a short there
  2. jfkelley

    LS Swap P0171 Code Bank 1 too lean HELP

    I was messing under the hood and put my hand there, and whenever I put my hand on the top of the harness the truck stumbled so I moved it back-and-forth and it kept doing it now it’s just an issue of how to fix it. Pull the tape back. I didn’t see any wires or pinch so I’m thinking it’s actually...
  3. jfkelley

    LS Swap P0171 Code Bank 1 too lean HELP

    Found the issue there is a short in the main harness that goes into the coil pack harness that mounts on the coil bracket
  4. jfkelley

    Shock Question

    I have a 1976 short wide bed K 10 four-wheel-drive Scottsdale with 4” lift .. my shocks are totally destroyed… What is everyone using their lifted trucks… Thanks in advance
  5. jfkelley

    LS Swap P0171 Code Bank 1 too lean HELP

    Went and cleaned all the grounds, the two on the back of the head, the one going to the body the ones at the front of the block and the one from the battery to the body and now my battery is really charging compared to what it was in the past and the driver side exhaust is back to being hot...
  6. jfkelley

    LS Swap P0171 Code Bank 1 too lean HELP

    I will be working on it more today and give the post an update ..I think I have traced it down to the coils not getting any spark bcuz of issues with the ground near the power steering ..Going to investigate and then update
  7. jfkelley

    LS Swap P0171 Code Bank 1 too lean HELP

    Let me see if I can’t get that info
  8. jfkelley

    LS Swap P0171 Code Bank 1 too lean HELP

  9. jfkelley

    LS Swap P0171 Code Bank 1 too lean HELP

  10. jfkelley

    LS Swap P0171 Code Bank 1 too lean HELP

    @Vbb199 Checked fuel pressure @ 50psi , No Diagnostic codes , checked all ground , checked connections on Injectors , Coils spark plugs , coil wires ..Just re-checked the situation. While there is plenty of fuel, I think that the spark is either intermitt or missing on the driver's bank. The...
  11. jfkelley

    P0171 Code Bank 1 lean “HELP”

    Just re-checked the situation. While there is plenty of fuel, I think that the spark is either intermitt or missing on the driver's bank. The drivers side exhaust is cold and the passengers side is too hot to touch After researching of a few forums 1. Broken valve spring 2. Bad ground on back...
  12. jfkelley

    P0171 Code Bank 1 lean “HELP”

    Need more info What intake - CAI / throttle body - stock What turning software- waiting on reply What computer- stock What exhaust- 2.5 Magnaflow Header or manifold- Stock with BBK Cat delete headers Where is o2 sensor in exhaust - upstream How close is o2 to any weld or joint in exhaust- right...
  13. jfkelley

    LS Swap P0171 Code Bank 1 too lean HELP

    I did have someone Drive tune it …I’m trying to figure out how to take down that other list ..Didn’t mean to double post it ..The tuner said if I can’t figure it out he will drive out to my house next week and try and figure it out
  14. jfkelley

    LS Swap P0171 Code Bank 1 too lean HELP

    @Blackbeard44 50+ fuel psi - Cleaned the MAF / Honeycomb intact / MAF is on Cold air intake right after the filter coming from passenger side ..I will check header bolts tomorrow
  15. jfkelley

    LS Swap P0171 Code Bank 1 too lean HELP

    @Blackbeard44 this what happens when you get old ..The code is P0171..My apologies
  16. jfkelley

    LS Swap P0171 Code Bank 1 too lean HELP

    LM7 / 4L60e / NP241C / LSXceleration Stage 2.1 Cam 218/227 .523/.523 HR112+3, Delphi GM LS7 Lifters & Lifter Guides , LS6/LS3 Valve Spring, Brand new O2 sensors, just drive it home from Tuners.. I keep getting bank 1 too lean and then it runs like crap like it goes into limp mode No Throttle...
  17. jfkelley

    P0171 Code Bank 1 lean “HELP”

    LM7 / 4L60e / NP241C / LSXceleration Stage 2.1 Cam 218/227 .523/.523 HR112+3, Delphi GM LS7 Lifters & Lifter Guides , LS6/LS3 Valve Spring, Brand new O2 sensors, just drive it home from Tuners.. I keep getting bank 1 too lean and then it runs like crap no Throttle response have to disconnect...
  18. jfkelley

    Transmission issue 4L60e

    I drive the donor truck it came out of never had any problems with it until now
  19. jfkelley

    Transmission issue 4L60e

    1977 K10 4x4 , LM7/4L60e/ NP241c ..Received a call from my tuner..The transmission was acting really odd. It would go for a bit then go into neutral and not move forward or back. Topped fluid off before tuning. Not sure if we have a sensor miscommunication or what. Going to scan it today and...
  20. jfkelley

    Oil pan leak rear of engine

    Replaced the oil Sending unit ..That’s when I noticed it only leaked after I shut the engine off
  21. jfkelley

    Oil pan leak rear of engine

    :emotions122: I have an 1977 K10 4X4 with an 2003 lm7 / 4l60e/NP241C ...I have a leak on the driver side oil pan the very last bolt ...The weird thing is it only leaks when I turn the truck off ..While its running no leak on the ground ..I changed the cam sensor thinking it was truly the...
  22. jfkelley

    B1 S1 Trim / B2 S2 Trim #’s ???

    I did a Swap into my 1977 High Sierra 4WD with an 2006 LM7 ..can anyone tell me what these numbers mean ? I know the temperature but what the other two mean ..I googled the interweb and not a clear answer ..Hoping for some insight here ..Thanks in advance
  23. jfkelley

    Door swap Question

    I have an 76K10 and the doors are in pretty bad shape ..Will 86 C20 doors fit ? Thanks in advance
  24. jfkelley

    Opinions Needed on Square Body Gauges LS Swap

    @CheemsK1500 this sounds like something I be interested in Thanks for the input
  25. jfkelley

    Opinions Needed on Square Body Gauges LS Swap

    I’m running an 4l60e

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