ECU question

[specialkmj7]

This was a response to my ? on I-supra at the end its underlined but this should help a lil better than tellin u yes. lol

Posted July 03, 2008 06:08 AM July 03, 2008 06:08 AM Hide Post

quote:
Originally posted by Supra88T_Knight:
I have heard different things about ECU's mostly about turbo's. For an N/A though you shouldnt have to worry about what year, however I would recommend not to go backwards though as with newer models comes newer technologies.

Nope. 86.5-88.5 are the same ECU, using yellow plugs. 89.5-92 are gray plug, and the wiring pins are different.

They are NOT interchangeable.

quote:
You can use a newer ECU however. I Know some models have Some safety additions and then theirs TEMS as well.

So long as the ECU is '90-92, yes. TEMS has nothing to do with the ECU. It has it's own computer...

quote:
I'm not sure if that plays a factor but you should be able to use it regardless. Oh yeah make it sure it also fits your transmission type, thats important too.

It only matters if he's automatic. If he's got a manual, it doesn't matter at all. Manual cars can use automatic ECU's and wiring harnesses, but not the other way around.