Other than the few s we can already "partially" do, the fully disassembled obd2 Caddy computer option has been much of a holy grail for DP.

I wanted to share some info so people can understand why the aftermarket for the caddy is so far just short of lame.

The OBD2 computer system used on the N* actually has a computer security program with at least another 20 security checks within all the regular GM security systems and this is why ASE and many other companies who tried to disassemble the system gave up.

Actually the caddy obd2 computer is bar none the most difficult domestic computer system to disassemble. There are many theories as to why GM went the extra mile to create a deeper level of security but so far most of the people with any knowledge of the system say nothing.

The good news has always been using the obd1 system that can be used on any N* swap. Yes we have a fully disassembled obd1 system.

So for now if you are swapping a N* into your car and you want to use the caddy computer go with a 1995 or older obd1 computer and you will be ok.


TY

Thanks for the info. I am very interested in your progress. I just learned that you cannot use the OBD1 on anything newer than 1999. So swaps with these engines are out until sombody gets past OBD2.

Still wishing and hoping on the 2000+ programmer. :)

So, can you do anything to a OBD2 computer? I want my governor pulled so I can join my car club at some of the actual road course tracks here in FL. Also looking to join SCCA and run the Caddy professionally before too much longer. Aint I sick? Other thing is how long would it take you to do that? (I'm going to have the motor out next week ore two, so kind of a case of might as well.)

No not anything on an obd2 caddy.

I will share some more.

I have always had 3 sources for the caddy. My best kept secret is not on my computer or on paper..lol its in my head. The person who does my 96-98 caddy computer program had done there work quite some time ago and I am hedging received some info from people in the know.. They are only able to do certain years with certain vin codes. I am not sure why but this is how it is. Soo they are able to change a few things but not able to fully modify the system.

I have another contact that is working on disassembling the entire line. Very close to being finished

I have already set up a older caddy to be sent in so we can complete the vss issues on the older chip. Up until now the need for complete vss on older chips was not really needed.

Alot of work to go but the commitment is there.

Ty

Arg, all I need is the gov pulled from my 97 Eldo ESC. Tis all I truly want from it.

So far the ESC is one that we have not been able to do. We are working on it and out of pure stubbornness I will make it happen.

So far certain Seville Deville and Eldo vins work.

Ty

Base Eldo, doesn't actually say ESC

Well, when you get a way to remove the top speed limit on a 2000 Deville, I will gladly pay the piper. That is really all I want as I am very satisfied with the rest of the caddy's perfromance.

Guess it's be pretty stupid to ask about reprogramming a 2004 CTS 3.6? Hmmm, thought so. Someday, somebody will do a turbo kit - this motor would really "walk the walk" with about 15 PSI sitting on it! :devil: :bouncy: :bonkers:

We have a large HP 3.4 grand am coming that has a turbo kit. We were able to initially use alcohol to stabilize it while It waited for the chip option to be finished. I will show you more soon. We use customers cars so anyone who wants there car done with a turbo and can send it to us we can get you a turbo and have it installed for a much cheaper price. This is of course for the first buyer. We are just waiting for the Grand Am transaxle to be finished so we can show off the power of this option. The turbo option is available for any of the GM vehicles and we will do them as we get interest.

I have a swap in the works for the 92-99 Pontiac Bonneville that will use the N* and we will make a turbo for it as well. This turbo will work on any N* the fitment issues will be a problem for some but that can and will be worked out as there is interest. I am sure once we get the numbers posted for the Grand Am you will get the bug.

I will enquire about the computer option for the CTS and the options available for getting around the programming.


Ty
Domestic Performance

so there is no way to get an '01 northstar motor to run outside the caddy.
i found a fiero with an '01 northstar that needs to be completed, and the
guy says he wouldn't of use this year of motor if he didn't think it could be done.
everywhere i've read no one has beat the computer.

is there an aftermarket computer like the holley commander that can be used?

how long before some cracks the computer?

thanks,
ts

is there an aftermarket computer like the holley commander that can be used?

Sure there is! CHRfab has the TEC3 or something, and there's a place called sand stallion (or similar) that has a computer for $1200 for the 2000+

So Speedy,
Are You saying that I can swap the obd2 out of my 97 Seville SLS and put in an obd1?

Yes if you get it programmed properly you should have no problems. The actual program and what it does has been already tracked its the checksums that get us and the cost for the time involved is high. You can imagine how much it will cost but lets say its more than $10.000.00 and less than $60.000.00 to finish this up and as much as I will still proceed I have decided to chase other options to help in more than one way. #1 if I make headers and other options available and find the product sales are a flop then I will be more inclined to chase the obd1 option.
It is less desirable for the regular streetcar but a great way to go for the serious 1/4-mile or sand buggy.

#2 there will be more funds to offset the cost.


This next year will decide for us. We are dropping alot of our other product and focusing on a few specific options. Turbo with an alcohol injection kit will be made to start the push. We will also offer a turbo with a obd1 option but lets focus on what we are going to start with right now....

Headers!. We are ready to start the process.

If you want an obd1 computer to work let me know and I can set it up for you.

Ty
Domestic Performance