CCRM Question

[whiteponygt]

I am doing the dohc lincoln motor i have used a 1997 gt wiring harness and body harness.My question Is can i use the gt computer, a local tuner says he can copy the 97 cobra program over my computer.. is that something thats possible and also anyone else who used the gt wiring harness did they use the ccrm from the gt or have to get one for a cobra, if they are not the same

 

[ponyboy89lx]

I used a CCRM that I bought off the bay because my harness didn't even have one on it, your car will run with the GT computer but the computer will think there is 19# injectors in the motor, so it will run a little rich. Just get it tuned for the 24's injectors and the mass air and you should be in great shape, tell the tuner to disable the PATS or you will be going crazy lol.

 

[whiteponygt]

i already had the pats disabled when the car was in the gt so i should be able to atleast fire the thing up with no issues aside from fine tuning....nothing that will hurt the motor?

 

[chris.c]

You won't have any control over the IRMC with a gt computer so you will need deletes or wire them open full time.

 

[whiteponygt]

i have a lincoln motor and the imrcs are plastic i was gonna take the butterflies out but i cant now so i have already wired them open but thanks for the heads up

 

[Svt Fox]

You won't have any control over the IRMC with a gt computer so you will need deletes or wire them open full time.

Are you absolutely certain about that?

 

[chris.c]

Are you absolutely certain about that?

He's using a 97 Gt harness also, so yeah pretty sure.

 

[Svt Fox]

He's using a 97 Gt harness also, so yeah pretty sure.

You said computer before, now you are saying harness.

Are you attempting to convey that IMRC's can't be used because of the computer or because of the harness?

Please clarify.

 

[Kurt]

Computers are physically the same between the GT and Cobra. If the wiring isn't there, you can add it.

 

[chris.c]

I guess I can't say for sure that the computer has irmc capability and that it would be limited by the harness. But, I doubt people would go out of their way to be finding cobra pcm if the gt pcm can be programmed the same, especially if someone were to fry their stock cobra pcm.

 

[Svt Fox]

I guess I can't say for sure that the computer has irmc capability and that it would be limited by the harness. But, I doubt people would go out of their way to be finding cobra pcm if the gt pcm can be programmed the same, especially if someone were to fry their stock cobra pcm.

Kurt confirmed that the computer is physically the same.


Wrong information is worse than no information Chris.

Please do not post information as factual if,
A. You are not sure
B. You're misinformed..ie wrong.

Thanks in advance!

 

[chris.c]

Physically the same as in it is the same size and plugs into the connector the same, sure? I see it as the same as how there is a difference in auto and standard computers, a manual wont operate an auto trans because the hardware inside is different. You say he confirms but you don't ask for his source/proof and correct me?

 

[Svt Fox]

Physically the same as in it is the same size and plugs into the connector the same, sure? I see it as the same as how there is a difference in auto and standard computers, a manual wont operate an auto trans because the hardware inside is different. You say he confirms but you don't ask for his source/proof and correct me?

Lol. Ok, Chris, whatever you say bud.

I know Kurt's experience level.

How many modular fox bodies have you built? How many of those cars did you wire up? Also utilizing the OBDII? While utilizing the stock fox cluster? And then dyno tuned it yourself, after everything was done?

 

[whiteponygt]

Ok hopefully you two are done with your pissing match and we can get back to the question. SO........ what everyone is saying is that i can use my gt computer and harness to start the car as of right now, (aside from the imrcs, and PATS which are wired open and disabled) the car should fire and run off of the gt programming until i can get it to my local tuner to accomidate for the 24LB injectors and so forth? Am i correct

 

[Svt Fox]

Ok hopefully you two are done with your pissing match and we can get back to the question. SO........ what everyone is saying is that i can use my gt computer and harness to start the car as of right now, (aside from the imrcs, and PATS which are wired open and disabled) the car should fire and run off of the gt programming until i can get it to my local tuner to accomidate for the 24LB injectors and so forth? Am i correct

I'd like to answer that question however, I am too busy with my "pissing" match.

 

[whiteponygt]

well i asked a very useful question that would help alot of people on the site with there swap, but for some reason i cant get a straight answer because of the grammer police here.So ill ask again what everyone is saying is that i can use my gt computer and harness to start the car as of right now, (aside from the imrcs, and PATS which are wired open and disabled) the car should fire and run off of the gt programming until i can get it to my local tuner to accomidate for the 24LB injectors and so forth? Am i correct

 

[ponyboy89lx]

You can run the computer to start the car, may act funky if it is auto and your running a 5 speed ECM though. Mine ran with a 97 GT automatic computer ( my car is a 5 speed too ), hell it actually ran better with that computer versus the cobra, I know have a delay in the throttle response with the cobra computer that I did not have with the GT ECM.

 

[Kurt]

well i asked a very useful question that would help alot of people on the site with there swap, but for some reason i cant get a straight answer because of the grammer police here.So ill ask again what everyone is saying is that i can use my gt computer and harness to start the car as of right now, (aside from the imrcs, and PATS which are wired open and disabled) the car should fire and run off of the gt programming until i can get it to my local tuner to accomidate for the 24LB injectors and so forth? Am i correct

The bulk of this era ECU are of the CDAN4 family. They are all literally the same physical EEC, but with different calibrations in them. So, to answer your questions more directly: The GT ECU will work great, the fuel trims will be quite a ways out to start, but it will run and drive. If you want to, you can add in the wiring for the IMRC's to the GT harness. It's up to you. The GT EEC definitely has the abitlity to control IMRC's. Your tuner may modify the GT calibration or use one of the cobra calibrations or a combination of both. Do you know if he will be chipping the ecu or using a flash programer?

Mod fox's car is pretty much identical to your setup. Lincoln motor with IMRC wired open and a GT harness and ecu. In his case I simply modified the GT calibration.

 

[whiteponygt]

thanks for yalls input that helps alot, we have two local tuners so im not for sure which guy ill use but the one that diabled the pats when it was in the gt said he could flash and use cobra calibrations. He also told me to stay away from the lincoln computer because of tuning capiabilities.

 

[Svt Fox]

The bulk of this era ECU are of the CDAN4 family. They are all literally the same physical EEC, but with different calibrations in them. So, to answer your questions more directly: The GT ECU will work great, the fuel trims will be quite a ways out to start, but it will run and drive. If you want to, you can add in the wiring for the IMRC's to the GT harness. It's up to you. The GT EEC definitely has the abitlity to control IMRC's. Your tuner may modify the GT calibration or use one of the cobra calibrations or a combination of both. Do you know if he will be chipping the ecu or using a flash programer?

Mod fox's car is pretty much identical to your setup. Lincoln motor with IMRC wired open and a GT harness and ecu. In his case I simply modified the GT calibration.

This!

This post and the tuning software post should be turned into a sticky.