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Thread: it runs!

  1. #1

    it runs!

    Thanks for all the answered questions.I fired up the 56 today and the lq9 sounds good ,its running thru edelbrock stepped headers and flowmaster 40s,hopefully it will be on the street in a couple of days. I do have one more question I am running a electric fan and not sure which pin on then 04 pcm controls the efan relay?

  2. #2
    Join Date
    Sep 2005
    Location
    Austin Tx.
    Posts
    13,138
    I believe its the 42 pin
    1951 3100
    1984 C10

  3. #3
    Join Date
    Apr 2005
    Posts
    4,229
    If that pin is activated in the tune...
    Gone, but not forgotten!

  4. #4
    Join Date
    Aug 2008
    Location
    North Texas
    Posts
    12,078
    Low speed is C1-42.

  5. #5
    Join Date
    Sep 2007
    Location
    Hutto TX
    Posts
    467
    Get your MIL and OBDII worked out?
    1991 Silverado ECLB
    LM7-T56

  6. #6
    Join Date
    Nov 2008
    Location
    Spring, TX
    Posts
    2,228
    Thats awesome, get a vid cuz i wanna see that thing move.
    '02 Silvy: Z71 EC Step Side 5.3L Nelson tuned
    2013 GMC Acadia: SLT1 Carbon Black
    1976 Corvette Stingray: Trying to save it, progress is slow.

    ^Ricky's Sweet PS Skilz
    09/21/2010 02:31 <danger_ranger83> I'm not really worried about the looks...I want it to be fast and ugly...bc no one wants to get outrun by something ugly

  7. #7
    I still need to run 2 wires for the extra speed sensor on the 4l80e ,find a switch to release the TCC and reset the tune for the 4l80. Hopeing for a test drive by the weekend.I figured out the data wire was on pin 58 and I'm not sure what the data on pins 14 and15 are for.I am using a 2 speed fan I had from my wrecked 96 bonneville ,I am going to run 2 relays I took off with it and hook one to pin 42 and the high speed to pin 33 and have it kick on at a higher temp, not sure but I think it should work ok.This project has been a pretty big learning curve for a guy who started out working on 283s and 327s HAHA!

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