Running a Northstar on a LS1 PCM. - Page 3
Cadillac
 

Cadillac Forums | Help Us Help You | Advertise | Cadillac Parts | Cadillac News | Cadillac Classifieds / (Old System)

Cadillac Technical Archive | Cadillac Dealers | Cadillac Reviews | Cadillac Dealer Reviews | Cadillac Vendors

CadillacForums.com is the premier Cadillac Forum on the internet. Registered Users do not see the above ads.
+ Reply to Thread
Page 3 of 14 FirstFirst 1 2 3 4 5 6 7 8 9 10 11 12 13 ... LastLast
Results 31 to 45 of 199
Cadillac Powertrain Control Module (PCM) Tuning Discussion, Running a Northstar on a LS1 PCM. in Cadillac Engine Technical Discussion; do they run a standard N* car though......
  1. #31
    CadillacSTS42005's Avatar
    CadillacSTS42005 is offline Banned
    Automobile(s): 2005 STS4 1SG: GM Acc Lights, Corsa, Platnium Grille, Volant
    Join Date
    Oct 2005
    Posts
    15,992

    Re: Running a Northstar on a LS1 PCM.

    do they run a standard N* car though...

  2. #32
    AJxtcman's Avatar
    AJxtcman is offline Cadillac Owners Connoisseur
    Automobile(s): The Northstar Tuner
    Join Date
    Apr 2007
    Location
    Rock Hill SC
    Age
    46
    Posts
    2,754
    Thread Starter

    Re: Running a Northstar on a LS1 PCM.

    My car runs for 3 seconds.

    I need to setup a different type of VTD bypass The car sound BAD A$$

  3. #33
    CadillacSTS42005's Avatar
    CadillacSTS42005 is offline Banned
    Automobile(s): 2005 STS4 1SG: GM Acc Lights, Corsa, Platnium Grille, Volant
    Join Date
    Oct 2005
    Posts
    15,992

    Re: Running a Northstar on a LS1 PCM.

    unplug the VTD?

  4. #34
    AJxtcman's Avatar
    AJxtcman is offline Cadillac Owners Connoisseur
    Automobile(s): The Northstar Tuner
    Join Date
    Apr 2007
    Location
    Rock Hill SC
    Age
    46
    Posts
    2,754
    Thread Starter

    Re: Running a Northstar on a LS1 PCM.

    Quote Originally Posted by CadillacSTS2003 View Post
    unplug the VTD?
    I have no VTD module. I have figured it out and hope to drive this soon.

  5. #35
    AJxtcman's Avatar
    AJxtcman is offline Cadillac Owners Connoisseur
    Automobile(s): The Northstar Tuner
    Join Date
    Apr 2007
    Location
    Rock Hill SC
    Age
    46
    Posts
    2,754
    Thread Starter

    Re: Running a Northstar on a LS1 PCM.

    It runs for a while and then stalls.

    If I hold it at 2000 it will run great. If I change the throttle angle rapidly it stalls.

    This setup is supposed to have an LS1 MAF sensor. Well I have one. I will need to figure out how to attach it and wire it.

  6. #36
    AJxtcman's Avatar
    AJxtcman is offline Cadillac Owners Connoisseur
    Automobile(s): The Northstar Tuner
    Join Date
    Apr 2007
    Location
    Rock Hill SC
    Age
    46
    Posts
    2,754
    Thread Starter

    Re: Running a Northstar on a LS1 PCM.









    My head hurts

  7. #37
    msta293412 is offline Cadillac Owners Fanatic
    Automobile(s): 2001 cadillac sts
    Join Date
    Jan 2006
    Location
    south florida
    Age
    42
    Posts
    285

    Re: Running a Northstar on a LS1 PCM.

    DONT GIVE UP!.......Theres got to be a way.....You have all of our suuport......

  8. #38
    darien99's Avatar
    darien99 is offline Cadillac Owners Fanatic
    Automobile(s): none
    Join Date
    Dec 2005
    Location
    Hazel Park, MI
    Age
    30
    Posts
    151

    Re: Running a Northstar on a LS1 PCM.

    I must be missing the boat here, but what will a LS1 pcm do for our northstars besides give us fuel and spark maps that weren't designed for our motor?

  9. #39
    AlBundy's Avatar
    AlBundy is offline Cadillac Owners Connoisseur
    Automobile(s): 1996 Eldorado Sport Coupe
    Join Date
    Jul 2005
    Location
    Chicago
    Posts
    4,991

    Re: Running a Northstar on a LS1 PCM.


  10. #40
    AJxtcman's Avatar
    AJxtcman is offline Cadillac Owners Connoisseur
    Automobile(s): The Northstar Tuner
    Join Date
    Apr 2007
    Location
    Rock Hill SC
    Age
    46
    Posts
    2,754
    Thread Starter

    Re: Running a Northstar on a LS1 PCM.

    Quote Originally Posted by darien99 View Post
    I must be missing the boat here, but what will a LS1 pcm do for our northstars besides give us fuel and spark maps that weren't designed for our motor?
    This program in the PCM is built for a NORTHSTAR

    This is a Custom High Performance Program built by GM

    The LS1 PCM has been hacked into. That PCM and a fully aftermarket tunable program is one way to make a caddy run hard.

  11. #41
    pjw315 is offline Cadillac Owners Member
    Automobile(s): 2003 STS
    Join Date
    Aug 2007
    Posts
    53

    Re: Running a Northstar on a LS1 PCM.

    Aj are you giving up on this project?

  12. #42
    AJxtcman's Avatar
    AJxtcman is offline Cadillac Owners Connoisseur
    Automobile(s): The Northstar Tuner
    Join Date
    Apr 2007
    Location
    Rock Hill SC
    Age
    46
    Posts
    2,754
    Thread Starter

    Re: Running a Northstar on a LS1 PCM.

    I have a few small bugs. I got the rest of the piggyback harness done. I am running two PCM's. I push out a pin in the jumper and had no charging system. I just fixed it. It is insane fast. BTW 158 top speed. I was under the impression it was 200+.
    My VSS signal is messed up so 35 mph = 158 in the Shelby PCM, but the stock PCM shifts at the correct speed. after hitting 158 it will cut out

    I will be posting more today and tomorrow

  13. #43
    pjw315 is offline Cadillac Owners Member
    Automobile(s): 2003 STS
    Join Date
    Aug 2007
    Posts
    53

    Re: Running a Northstar on a LS1 PCM.

    I am looking forward to your posts. Do you plan on doing a dyno run once you have all the bugs worked out?

  14. #44
    AJxtcman's Avatar
    AJxtcman is offline Cadillac Owners Connoisseur
    Automobile(s): The Northstar Tuner
    Join Date
    Apr 2007
    Location
    Rock Hill SC
    Age
    46
    Posts
    2,754
    Thread Starter

    Re: Running a Northstar on a LS1 PCM.

    Quote Originally Posted by pjw315 View Post
    I am looking forward to your posts. Do you plan on doing a dyno run once you have all the bugs worked out?
    Yes this will take a trip to the dyno.

    I have the schematics for the following
    Sensor connector terminals
    ------------- A------------------B
    99 Deville -- High (PPL 401)----- Low (YEL 400)
    99 Seville -- Low (PPL 401)----- High (YEL 400) This is my car
    99 Carmaro -Low (LTGRN/BLK 822)--- High (PPL/WHT 821)
    99 Shelby -- Low (LTGRN/BLK 822)--- High (PPL/WHT 821)

    I am going to swap the two wires at the Shelby PCM and see if it works

  15. #45
    AJxtcman's Avatar
    AJxtcman is offline Cadillac Owners Connoisseur
    Automobile(s): The Northstar Tuner
    Join Date
    Apr 2007
    Location
    Rock Hill SC
    Age
    46
    Posts
    2,754
    Thread Starter

    Re: Running a Northstar on a LS1 PCM.

    Way to much power for for my already weak trans.
    I can't hold the massive power back. toasted my trans.
    video soon

Quick Reply Quick Reply

Register Now

Please enter the name by which you would like to log-in and be known on this site.
If you do not want to register, fill this field only and the name will be used as user name for your post.

Please enter a password for your user account. Note that passwords are case-sensitive.

Please enter a valid email address for yourself.

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Bookmarks

Cadillac Posting Rules

  • You may post new threads
  • You may post replies
  • You may not post attachments
  • You may not edit your posts
Read about Lincoln | Buick | Kia Forte Forum
Need products for your Cadillac? Check out your options at the links below:

custom floor mats | Cadillac Chrome and Black Chrome Wheels | window tinting