engine ecu/trans control question

[no_doz]

if an engine that came from the factory with an ecu that also controls an auto trans, if an older-non electronically controlled transmission were mated to it-could the trans control just be kind of "capped off" without the engine throwing a fit?

[sprucegagt]

Yes, but depends on the vehicle and PCM.

Do you even bother to read any of the manual trans swap threads?

[no_doz]

ive done loads of searching & am still searching but havent found at all what ive been looking for because most of the threads involve early 90s engines & obdI whereas im needing this info for the OBDII. there are TONS of threads & i am going through them looking for answers but sadly i am yet to find any (i read in one of them that with a chip like one from WOT that the trans controls can be removed as well as the EGR-is this true?).

[sprucegagt]

Anything is possible with enough $. But, again, what vehicle and PCM?

[no_doz]

93 700r4-the last year for the engine/trans management to be separate-and a 4.0 aurora engine. i didnt really want to say what the engine is for fear of being blasted for it, but ive always wanted to swap one of those into a camaro or rwd. do you happen to know anything about the PCM used in those engines or alike considering they are still a chevy?

[sprucegagt]

So your talking about a 93 camaro with it's stock PCM?

I'll spare you the Aurora bashing for later.

[no_doz]

no!! stock trans-aurora engine/PCM/etc... but the trans wont be controlled by the engines PCM, my point is can i do this/is it too hard to do without going as far as MS?

[bszopi]

Old ECM run the trans and new ECM run the engine. Some sensors will have to be shared between the 2, but that is your best bet to get it running.

[no_doz]

the thing is tho-isnt that trans not computer controlled? or is it just seperately controlled? & if its separately controlled & i use the stock trans controller, will the 4.0 flip out because its trying to interact with the trans?

[sprucegagt]

The only thing electronic about that trans is the converter lockup. You can get a separate controller for it from Summit or not use the lockup buy leaving the connector for it unplugged. It won't hurt the trans, just MPG. Then use MS for the 4.0. In the end it would be easier than trying to get a stock PCM tuned for a unique setup.

[no_doz]

so basically its not feasible to even try and mess with the stock PCM? also is there any way i could get a computer controlled rwd auto trans & have the pcm control that with the stock settings or is that just crazy talk?

im really wary of the whole MS thing because i just flat out dont have the knowledge to tune it once its hooked up-nor do i know anyone who does.