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  1. Replies
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    22,309

    Flex fuel truck fuel pressure is 50 not 58. It?s...

    Flex fuel truck fuel pressure is 50 not 58. It?s actually ?48-52? with vacuum off. There is a different regulator on the return style flex fuel trucks.

    I know this is an old thread, but I was...
  2. I wound up segment swapping my 04? Tahoe file and...

    I wound up segment swapping my 04? Tahoe file and doin a full write to the 03 Tahoe computer. Only thing that seems off is it will start with clutch out. I think the switch needs adjusting.
  3. I?ve ran my 04 Tahoe computer on his 03 tac and...

    I?ve ran my 04 Tahoe computer on his 03 tac and pedal before. I was able to get my file to accept the segment swap. Both p59 iirc so I?m going to try that. Only issue with my computer is it made his...
  4. Do you know if his is dbw? If all else fails you...

    Do you know if his is dbw? If all else fails you could just do a full rewrite if his file has every thing yours does. It would cost credits but it would easily fix your issue.
  5. It would be fantastic if you didn?t mind posting...

    It would be fantastic if you didn?t mind posting that file.
  6. I am doing a very similar thing. Nv4500 with a...

    I am doing a very similar thing. Nv4500 with a 2003 dbw Tahoe computer and tac. I do have a stock tune and couldn?t get a 2004 Silverado to Work. So I?m not sure what to do. I can?t find a 2003...
  7. Sticky: Did you ever find this file? I?m doing the same...

    Did you ever find this file? I?m doing the same and can?t find a file that works with a 2003 truck pcm.
  8. Replies
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    733

    2003 etc manual tune

    i have a 2003 Tahoe electronic throttle body and installing a nv4500 into it. anybody have a tune I can borrow to segment swap it? I found a 2004 and a 2002 neither will work.
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    ok looked back through the log. looks as though...

    ok looked back through the log. looks as though the logger did go wonky. the tables in the boost range actually didn't show any numbers at all. so that leaves me to wonder why power felt off. my...
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    timing flat lined while logging today.

    on my way to work this morning I had the data logger going. had to get on it just a bit to get over in traffic and it felt like power was WAY down. got to work and scrolled back to that spot and I...
  11. Replies
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    Thanks for the help every one. I think I got this...

    Thanks for the help every one. I think I got this thing figured out. The Tahoe logger work and I made one for my 5.3 swapped Colorado. Going to try it out today.
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    Some of my configs I have had for so long I...

    Some of my configs I have had for so long I forgot how I made them. I did read through the stickies it helped some. Then I read on a thread where a guy said to open an old log and save channels as. ...
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    62463 here is a log from before. maybe it will...

    62463 here is a log from before. maybe it will help set up a new layout.
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    4,504

    can somebody please help me fix my scanner??

    i down loaded the lastest hpt which was a dumb move i guess cause i cant get shit to work on the scanner. i'll load my config i usually use with the old one and maybe somebody can help me out...
  15. Thread: Odometer too fast

    by 4.8t
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    1,089

    Odometer too fast

    Recently put a 5.3 into a 04 Colorado using a 03 Tahoe dbw computer. Everything works like its suppose to except for the odometer. It is counting super fast. Or I'm getting extremely good mileage....
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    Colorado swap questions

    I'm doing a 5.3l swap into an 04 Colorado. From my understanding I have to run a trailblazer v8 computer for everything to communicate. I have a dbw 6l 04 Silverado harness/computer with tac...
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    Service number is 12581501

    Service number is 12581501
  18. Replies
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    2,585

    E40 computer OS swap?

    I'm doing a v8 swap with in a Colorado. I need to run an E40 computer to do it. I got a computer from the local junk yard but it's from a grandprix v6. Can I do a full write and put a trailblazer v8...
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    When he first got the car it wouldn't run the...

    When he first got the car it wouldn't run the near the same times ever run. It was always out to lunch. The rev limit was only 100rpm from the shift point so it would smack that every few runs. ...
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    I took out all the changes for timing for ect and...

    I took out all the changes for timing for ect and iat in the areas he runs as per the data logs. The "dyno" tune was all over the place with numbers so I tried to smooth things out best I could. He...
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    That's some of my thinking too. But he makes...

    That's some of my thinking too. But he makes sure the car is warmed up before each run. He does pop the hood between runs to cool it down but in the lanes he doesn't shut it off. All the logs I have...
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    How to make a car consistent?

    I have a friend with a gto, I've been tweaking his tune a little here and there trying to make it run more consistent. It was dyno tuned before he bought the car but it won't run same times to save...
  23. Thread: PCM swap

    by 4.8t
    Replies
    1
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    1,699

    PCM swap

    My son's motor blew in his 2004 Colorado. It had the 4cyl in it. My uncle has a 2005 I5 computer from his Colorado that he rolled that he is going to send me. Can I use the 05 PCM in my 04 to run an...
  24. Thread: Lost RPM PID

    by 4.8t
    Replies
    1
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    1,317

    Lost RPM PID

    A few weeks back in installed .hst (I think that's the ones) files for data logging my son Colorado ve tables. I went to data log my Tahoe and I have no rpm. It says unsupported and engine rpm is...
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    Throttle open percent and raf

    I'm tuning my tahoe right now and trying to get some odd ball idle issues fixed. I did the raf log but I'm wondering if it's too high. I don't have a bad cryise control but I do have bucking with...
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