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Forum: GM PCM Tuning & Diagnostics

Tuning | Diagnostics | DTC Codes | HP Tuners

  1.   Sticky Threads  

  2. Sticky Thread Sticky: Tuning Solutions

    HANDHELDS: Ideal for unmodified or very slightly modified vehicles HYPERTECH- If you don’t plan on heavily modding your car then you may...

    • Replies: 3
    • Views: 82,230
    07-27-2019 02:54 PM Go to last post
  3. Sticky Thread Sticky: Quest for tuning 93-95 f-bodies

    As some of you know I have been working on a simple swap for tuning the "OBD1.5" stuff for a while now and am finally down to the wire so to speak. ...

    6 Pages
    1 2 3 ... 6
    • Replies: 86
    • Views: 216,082
    05-12-2017 08:31 PM Go to last post
  4. Sticky Thread Sticky: 3.4L Megasquirt EFI Installation and Tuning Guide

    Hey guys. I just joined this board a few days ago. I don't know why I waited so long. There's a lot of good info here...and people seem a lot more...

    3 Pages
    1 2 3
    • Replies: 41
    • Views: 41,336
    02-01-2016 11:54 AM Go to last post
  5. Sticky Thread Sticky: 2 Tunes in 1 (Dry nitrous users only)

    here's is a little something i have been experimenting with for the past 4wks or so and thought i would share...(yeah, im a giver hahhahaha) ...

    • Replies: 10
    • Views: 10,862
    05-23-2009 10:23 AM Go to last post
  6. Sticky Thread Sticky: PCM Tuning and Diagnostics FAQs

    These are the FAQs related to this section of the forum. My apologies for any FAQs that have missing pictures in them. Sometime during one of the...

    • Replies: 0
    • Views: 9,504
    11-08-2007 10:09 PM Go to last post
  7. Sticky Thread Sticky: SES Lookup and Diagnostic Information if it asks you to regsiter.. the fields are dummy fields... Type gibberish into them and it'll accept it......

    • Replies: 1
    • Views: 8,513
    06-28-2006 09:54 AM Go to last post
  8. Sticky Thread Sticky: Tuning Writeups ...

    • Replies: 2
    • Views: 10,526
    05-11-2006 10:28 AM Go to last post
  9.   Normal Threads  

  1. Auto 4L60E Computer Tuning

    I'm working with Sinister to get a great tune on my modified 4L60E trans. I'm currently running a Performabuilt Stage 2 with a Monster 2800-3200...

    • Replies: 3
    • Views: 30,722
    04-06-2017 08:13 PM Go to last post
  2. HPtuners Can "Deactivate/Kill" Your Interface at Any Time

    Word of warning to those of you who use HPTuners... EDIT 1:The plot thickens, when I originally received the interface, the paperwork that came...

    • Replies: 1
    • Views: 3,223
    01-06-2017 11:14 PM Go to last post
  3. Camaro 3.4 OBD1.5 Tunercat Software Announcement

    I, along with many others, have been using the Tunercat software to tune my 3.4/3500 hybrid in my 95 Camaro. While playing around with tuning, I've...

    • Replies: 1
    • Views: 31,545
    07-20-2016 12:47 AM Go to last post
  4. Tuning LX9 above 6400 rpm Help

    I have a Turbo 3.5 LX9 that is tuned PERFECT up to 6300rpm. I'm very happy with the tune however the computer wont allow me to tune past 6400 RPM or...

    • Replies: 3
    • Views: 30,340
    07-08-2016 03:42 AM Go to last post
  5. Tuning archive

    Andrew's site is toast. Did anyone save it, or know where the info can be found? Also Gary's tuning intro works...but none of the pictures are there...

    • Replies: 4
    • Views: 4,784
    01-12-2016 12:18 PM Go to last post
  6. DHP Tuner

    On the DHP tuner programs, is that program still around for sell these days? If so we're can I buy one for my self. I know if hp tuners but want...

    • Replies: 2
    • Views: 4,772
    09-27-2015 08:56 AM Go to last post
  7. Stock tune file?

    Can anyone email me a stock tune for a 2001 Pontiac firebird 3.8 automatic for hp tuner.

    • Replies: 1
    • Views: 3,871
    07-21-2015 11:38 PM Go to last post
  8. know nothing of computer tuning.

    Ok guys I am new here. First timer... I have been a mechanic for my hole life. I know engines inside and out. Along with the rest of most cars. But...

    • Replies: 0
    • Views: 3,635
    07-19-2015 11:38 AM Go to last post
  9. How to tune a vss without a trans table?

    So here goes, I have a 1988 Suzuki Samurai with a s/c 3800 in it, backed by a 700r4. I have tuned and been running without a vss input to the pcm. My...

    • Replies: 0
    • Views: 3,567
    06-08-2015 07:04 PM Go to last post
  10. More boost?

    I've searched and searched and have gotten a lot of mixed info ... I have an 01 firebird 3.8 with a 70mm on 12 psi . my question is how can I run...

    • Replies: 2
    • Views: 3,871
    06-08-2015 12:10 PM Go to last post
  11. looking for a diagnostic gauge

    Lately I've been having some grief with the maf on my camaro and I was wondering if there is any diagnostic gauge out there that can read what the...

    • Replies: 2
    • Views: 3,967
    04-13-2015 04:17 PM Go to last post
  12. MSD DIS4 Timing - Calling Turbo or John

    Question - Will this work? I have a 94 3.4 Camaro. MS2 V3 running fuel Stock ECU tuned by ED Wright of Fast Chips running timing and trans....

    • Replies: 7
    • Views: 5,373
    03-08-2015 12:14 PM Go to last post
  13. Help! '94 3.4L Datalogging

    Hey guys, I've just started getting into tuning my car (It's a 1994 camaro 3.4 manual trans.), I just got a laptop, C.A.T.S. Tuner, and an ALDL cable...

    • Replies: 5
    • Views: 11,684
    12-30-2014 01:08 AM Go to last post
  14. I NEED TO SCAN my 1994 FIREBIRD V6, but nobody around here has the tool,

    Does anybody know of a person in the Seattle area with a code reader for a 1994 Firebird and/or Camaro. It's a 12-pin but with a programmable memory...

    • Replies: 7
    • Views: 5,862
    12-30-2014 12:59 AM Go to last post
  15. 1997 Camaro PC in 94 Firebird

    I'm in the process of building a 3.5/3500 conversion engine. I have the mechanical complete. Infact the car starts and drives. there is a definite...

    • Replies: 2
    • Views: 3,934
    12-23-2014 08:43 PM Go to last post
  16. Starting and stalling issues- stumped

    So this is on the LS1, but I am pretty sure this is not an engine specific issue...I'm stumped as hell. First off here is a video of what is...

    • Replies: 4
    • Views: 4,377
    12-01-2014 12:15 AM Go to last post
  17. 3.8 camaro megasquirt wiring❓

    I have a megasquirt v2 and a 01 camaro i want to wire it into the stock ecm clips so it would be a straight swap without cutting into the stock...

    • Replies: 12
    • Views: 8,975
    11-06-2014 09:16 PM Go to last post
  18. hp tuner question

    I'm no stranger to tuning, a few years back i used the DHP tuner extensively on my car. That tuner program required allot of work. Had to scan, tune,...

    • Replies: 1
    • Views: 4,344
    09-26-2014 04:56 PM Go to last post
  19. Megasquirt- AE Wizard Question-calling turboV6 - 89RS

    Read everything I can find- cant get it answered. Tunerstudio MS 2.6 code Im setting my MAPDot- threshold: I watch the graph in the...

    • Replies: 0
    • Views: 3,634
    09-17-2014 07:57 AM Go to last post
  20. P0101 major issue

    Hey Guys, My buddy has a 2002 Sonoma with a 4.3L engine that has the two of us stumped. Recently it started throwing the P0101 code for the maf...

    • Replies: 1
    • Views: 4,079
    08-09-2014 11:28 PM Go to last post

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