| Cadillac Powertrain Control Module (PCM) Tuning Ask questions - Get answers in our section for discussions regarding Cadillac PCM tuning for engines such as the LT1, LS6, L92, LQ9, LQ4, L03 (TBI 305), L05 (TBI 350) and more... | Cadillac Forums: Northstar Tuning 
04-24-07, 10:40 PM
|  | Cadillac Owners Master Cadillac(s): 1989 STS / 2001 DTS / 2002 DTS  | | Join Date: Apr 2005 Location: Upstate NY | | | Re: Northstar Tuning
Guys, I know this is difficult to swallow at this point, and this guy is new to the forum BUT we should at least hear him out. From what he's saying I gather he's at a point where he thinks he can do some sort of tuning to these things but keep disrupting the comm signals for whatever reason.
I've heard many stories about someone doing something as small as changing the wording of a DIC message and that in itself breaking a PCM beyond repair SO. Having said all that I have my doubts also.
However, if he is onto something I'd hate to think we told him to go pound salt before we gave him a chance.
__________________
Ownership:
89 STS (1 of 1893) - FOR SALE
02 Blue Onyx DTS
01 DTS:
Custom installed Volant CAI
Custom PCM
Body color engine components
Cruiser Alloy wheels
EBC brakes
Eibach springs
Corsa exhaust
Sportwing Spoiler
Semi-custom interior
Custom quad Hi-Beams
Future Plans: More interior work.
Memberships:
National and regional Cadillac & LaSalle Club
Proud Volunteer - Northstar Tuning Project
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04-24-07, 11:09 PM
| | Cadillac Owners Fanatic Cadillac(s): 82 fleetwood - 97 deville | | | | | Re: Northstar Tuning
Quote:
Originally Posted by codewize  Guys, I know this is difficult to swallow at this point, and this guy is new to the forum BUT we should at least hear him out. From what he's saying I gather he's at a point where he thinks he can do some sort of tuning to these things but keep disrupting the comm signals for whatever reason.
I've heard many stories about someone doing something as small as changing the wording of a DIC message and that in itself breaking a PCM beyond repair SO. Having said all that I have my doubts also.
However, if he is onto something I'd hate to think we told him to go pound salt before we gave him a chance. | 
he may be being rather smartassed about it...but least lets see what he produces...if nothing...then he can go pound salt... |
04-24-07, 11:20 PM
|  | Zeeee-yaaaa Cadillac(s): 07 STS 1SG, 03 STS, 74 Eldo, 98 Z28, PAST: 97 ETC | | Join Date: Oct 2005 Location: Cheswick, PA Age: 23 | | | Re: Northstar Tuning
hence why ive waited so long and let him speak out before i even chimed in...
but this guy
idk seriously doubt hes done anything... cuz if he hacked it as he said id be on my way there to unlock my new H STS to a Z and get any performance mod he could push outta this...
i just find it every hard that JET with unlimited resources couldnt do it, and some guy with a program on his lap top can do anything he wants to the N*.... |
04-25-07, 09:01 AM
| | Cadillac Owners Connoisseur Cadillac(s): Member of Air Fuel Tuning (Cadillac Division) | | Join Date: Apr 2007 Location: Inside The Northstar PCM Age: 41 | | | Re: Northstar Tuning
I am a Cadillac Dealership Tech. We reprogram hundreds of modules every year. We load the complete program not a patch into the Tech II. The Tech II saves it on a PDMCIA card. This is the complete program. Now this will go into a PCMCIA card slot on a laptop. It is an embedded file and I have acquired a program to read it. The problem is the definition files. I have started comparing VIN Y to 9, Limo to non limo, Updated cam to the original "TSB", AIR pump to twin AIR pumps to no AIR system, Converter program to non converter programs and I am building a list of definitions. It takes time. I would not have posted this thread if I could not change the speedlimiter, trans PC soleniod, EGR %, and more. |
04-25-07, 11:20 AM
|  | If it won't run, chrome it..... Cadillac(s): 2002 Cadillac F55 STS/53000mi., 2004 Ford F150 Super cab 4x4 | | Join Date: Feb 2006 Location: Maryland upper Eastern Shore Age: 69 | | | Re: Northstar Tuning
 All us buzzards circling around may have found A Man in Havana. (old movie...) If his experiments pan out, it could prove interesting. BUT if you're in OEM or extended warranty and you mess with the PCM, I'll bet GM wouldn't give you a second look for repairs.....Of course you could always buy and store a stock PCM for just such an event....lotsa variables. |
04-25-07, 11:44 AM
| | Zeeee-yaaaa Cadillac(s): 07 STS 1SG, 03 STS, 74 Eldo, 98 Z28, PAST: 97 ETC | | Join Date: Oct 2005 Location: Cheswick, PA Age: 23 | | | Re: Northstar Tuning
alright
ill bite
ask anyone here im am number one when it comes to looking for performance mods.
I have a 03 STS and a 97 ETC at my disposal
the 03 STS is an H car and id like to have the limiter removed and the performance mildly tweaked (only mildly because i dont want to sacrifice longivity of the car for a major increase in performance, as was stated before the N* can easily melt pistions if adjusted too much not to mention pulling heads)
Ill send you an 03 Dummy computer along with my cars vin, you update it and modify it and send it back to me, ill plug it in take her to my shop put her on a lift and nail it, if she breaks 130, youve proven your validity and im sure money will pour in from all over the forum. I highly doubt anyone else could support you or refute you as much as i can and since my car is factory bumper to bumper for another 5k its prob the best test mule, keep in mind though and i KNOW IT MATTERS, my STS is an F55 MAGNARIDE STS, not the old FE3 or F45 suspension....
If it works ill gladly pay you your fee however this is after ive gotten my pcm back and tested it because as far as im concerned i could be purchasing snake oil....
Sound fair enough? If so let me know NOW and ill will buy another PCM for an 03 STS.... |
04-25-07, 12:14 PM
| | Cadillac Owners Connoisseur Cadillac(s): Member of Air Fuel Tuning (Cadillac Division) | | Join Date: Apr 2007 Location: Inside The Northstar PCM Age: 41 | | | Re: Northstar Tuning
PM me your VIN and I will pull the program and VIS. GM VIS is Vehicle Inquiry System. It has ALL your information I need. I will send you a copy. I will be able so to recal IPC's. That would mean set everything to 0 or what ever # I want. Yes that is included also "all the # displayed |
04-25-07, 12:23 PM
| | Zeeee-yaaaa Cadillac(s): 07 STS 1SG, 03 STS, 74 Eldo, 98 Z28, PAST: 97 ETC | | Join Date: Oct 2005 Location: Cheswick, PA Age: 23 | | | Re: Northstar Tuning
1g6ky54983u282931 |
04-25-07, 01:11 PM
| | Zeeee-yaaaa Cadillac(s): 07 STS 1SG, 03 STS, 74 Eldo, 98 Z28, PAST: 97 ETC | | Join Date: Oct 2005 Location: Cheswick, PA Age: 23 | | | Re: Northstar Tuning
also another cool thing to have would be to disable the t/c and keep 1st gear, idk if thats do-able though... |
04-25-07, 01:52 PM
| | Cadillac Owners Connoisseur Cadillac(s): Member of Air Fuel Tuning (Cadillac Division) | | Join Date: Apr 2007 Location: Inside The Northstar PCM Age: 41 | | | Re: Northstar Tuning
You Have this?
________________________________________
Last edited by AJxtcman; 07-07-07 at 02:51 PM.
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04-25-07, 01:58 PM
| | Cadillac Owners Connoisseur Cadillac(s): Member of Air Fuel Tuning (Cadillac Division) | | Join Date: Apr 2007 Location: Inside The Northstar PCM Age: 41 | | | Re: Northstar Tuning
Just a Note. This is from the Recall I listed earlier.
THE CALIBRATIONS ARE PROGRAMMED INTO THE VEHICLE'S PCM VIA A TECHLINE TOOL DEVICE AND ARE AVAILABLE FROM GENERAL MOTORS SERVICE TECHNOLOGY GROUP (STG) STARTING WITH 1998 DISC 18.
TIS is no longer and the server disc are ?????
We now have TIS2WEB and no CD's. This was done for security reasons. I can't figure out why  |
04-25-07, 02:28 PM
| | Cadillac Owners Connoisseur Cadillac(s): Member of Air Fuel Tuning (Cadillac Division) | | Join Date: Apr 2007 Location: Inside The Northstar PCM Age: 41 | | | Re: Northstar Tuning
Do you have the ability to relearn Crankshaft Position Variance? |
04-25-07, 05:59 PM
| | Cadillac Owners Master Cadillac(s): 1989 STS / 2001 DTS / 2002 DTS | | Join Date: Apr 2005 Location: Upstate NY | | | Re: Northstar Tuning
Ohh this is getting juicy. Can I get one too  |
04-25-07, 06:11 PM
| | If it won't run, chrome it..... Cadillac(s): 2002 Cadillac F55 STS/53000mi., 2004 Ford F150 Super cab 4x4 | | Join Date: Feb 2006 Location: Maryland upper Eastern Shore Age: 69 | | | Re: Northstar Tuning
 ETC1997, ajxtcman...........This is only slightly off-thread, but ETC opened the can of worms: Traction Control On/Off...1st gear disabled? My '02 is an H car, I drive it carefully, well, and fast. I leave the TC engaged when I feel like doing something stupid such as imitating a Ferrari on a back road. BUT, when I punch "TC off" in order to scare the h... out of a riceburner, I still have 5 speeds.....4 gears and TC lockup. Regardless of D, 3, 2, 1, whatever. I can shift up & down manually, or let "3" and "D" do it for me. How is this possible? I've searched the FSM, threads, other forums. Do I have a one-of-a-kind, or is there some secret here? |
04-25-07, 07:35 PM
| | Cadillac Owners Connoisseur Cadillac(s): Member of Air Fuel Tuning (Cadillac Division) | | Join Date: Apr 2007 Location: Inside The Northstar PCM Age: 41 | | | Re: Northstar Tuning
Strickley a year issue.
I drive up to 10 different caddy's every day. 99 and prior TC OFF = 2nd gear start. 2000+ does not!
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I am about to show a program in a PCM and then install it in the car. | | Cadillac Discussion Tools | | | 
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