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  1. Scanning for Red 53 connector (Traction Control)

    I have a 2000ish LS1/4L60e combo in my 58 Chevy Apache and its working well.

    I previously hooked up the factory power/eco button from the donor car which supplies a momentary signal to the...
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    LS1 Base timing , Fuel prime , crank fuel

    I had a post in here a while ago about my tune and I have made a few changes since then (no new logs yet) as I still need to change and test a couple of small things before I take it to the tuner...
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    Thanks

    Thanks
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    LS1 to LS6 injector tuning changes

    Hey all.
    I have changed the injectors in my engine from the 26lb LS1 units to the 29lb LS6 units.
    In the fuel/general tab in HPTuners what fields need changing (other than below)

    Flowrate...
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    @ryan and @dhoag To be honest the tuner I plan...

    @ryan and @dhoag
    To be honest the tuner I plan to use flashed me an SD tune (from a similar car/engine combo) so I could move it around and get it on and off trailers etc. At that stage I didn't...
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    So I just went an run another check after adding...

    So I just went an run another check after adding IAC POSN, LTIT and STIT.

    LTIT didnt appear to do anything at all for the 6 mins just sat on 0
    STIT dropped if I revved the engine at all
    Idle...
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    dhoagland: I did give it a couple of blips but...

    dhoagland: I did give it a couple of blips but after than it was idling and thats when the rpm increased and throttle was a 0% (or close to).

    Ryan_axberg: I have added them now . thanks

    Added...
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    Increasing Idle as car warms up

    Started the truck for the first time in ages the other day to show a family member what it sounds like with the exhaust on. Thought I would let it run for a little bit to get some heat in it as...
  9. 5fdp for president long live 5fdp Its alive...

    5fdp for president

    long live 5fdp

    Its alive and it sounds so good.

    thanks or pointing m in the right direction on the map/injectors as the definitly helped once i sorted the firing order.
  10. THANKYOU .... I see what you mean by the map...

    THANKYOU .... I see what you mean by the map sensor now.
    He has it programmed as 128.13/-0.31 where my stock LS1 was 94/10.33 like you said. Ill change that back and upload this weekend.

    As...
  11. Ok, I've changed the corvette regulator/filter...

    Ok, I've changed the corvette regulator/filter for a separate high pressure fuel filter and adjustable regulator and in a couple of minutes I was able to set the pressure right at 58psi.

    Now when...
  12. The MAP sensor is factory LS1 from the original...

    The MAP sensor is factory LS1 from the original donor car the engine, loom, pcm come from. The vacuum pipe runs in to one of the rear ports on the Holley 4150 throttlebody (part number 112-587)...
  13. Thanks 5FDP as always for the reply. Why...

    Thanks 5FDP as always for the reply.

    Why is having the MAP at 105kpa bad. My calculations make that about 15.1psi which is pretty close to atmospheric (14.7 at sea level).
    When the...
  14. "Crank Sensor Current Cylinder" & "Current Firing Cylinder"

    Hey all

    My ls1 wont fire and its either going to be low fuel pressure across the injectors or a crank signal issue.

    While I wait for a fuel pressure gauge to arrive I wanted to ask about two...
  15. Think I figured it out, or at least it sounds...

    Think I figured it out, or at least it sounds feasible in my head....

    When I started my build I was 75% sure I was going twin turbo route. Being the tight arse I am, I am 95% sure I decapped my...
  16. OK. so I have ordered an injector tester which...

    OK. so I have ordered an injector tester which is going to take about 8-10 days to arrive from the USA. In that time i hope to pull the pcm in the cab and check my wiring and both coil and...
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    Thankyou, For some reason I was thinking it was...

    Thankyou,
    For some reason I was thinking it was on the drop down menu and at the time I hadnt connected to the pcm so the engine button was greyed out and I ignored it.
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    Where do you view reported error codes

    I am sure I have done this before but for the likes of me I cant find it now.

    I want to check if the PCM is spitting out any error codes (i know where to go to change SES etc) but where do you...
  19. @ffdp - yes. It ran before I changed the intake...

    @ffdp - yes. It ran before I changed the intake and before I moved ...
    First start
    Just before move

    @Murfie - thanks for the advise. will look that way and check and report
  20. Hi all. Back from training and back into it. ...

    Hi all. Back from training and back into it.

    Today I wired up a second battery (in parallel) which only powers the PCM. On cranking the voltage is better than before but the car is still not...
  21. I have spent the last 4 days checking earths and...

    I have spent the last 4 days checking earths and feeds , replaced a couple of suspect wires and no change.
    Everything has 12v when key is on run but the HPtuners is recording 11.5
    When I crank...
  22. Did some testing today and can confirm I have no...

    Did some testing today and can confirm I have no issues with power to all injectors and coil packs (all getting a 12v signal).

    I can only think there is something wrong with the earth trigger...
  23. Just letting you know I decided overnight to...

    Just letting you know I decided overnight to reload my very first tune (unmodified GM tune) and start again in case I had turned something on or off inadvertently

    I ran the Speed Density...
  24. Thanks 5fdp. The PCM currently has Version...

    Thanks 5fdp.

    The PCM currently has Version 005 loaded (with the changed fields as per my first post)

    When I went to OS and selected the first option (Speed Density - Enhanced RTT) I got the...
  25. I know these are only basic ones. If you need...

    I know these are only basic ones. If you need more please let me know which ones and I can retest.

    For both these attempts the engine cranked but didn't try to fire at all (battery getting a...
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