Ok so I got a 89 tII
I picked up a jspec motor,tranny ,ecu,harness.
The car has a jspec motor in it now but its all hacked up,**** missing.
Here is the question I throw the new motor in with the ecu and harness but I have been told there is no hook up for the ac/heater/windshield wipers on the ecu like the u.s ecu has.So what the hell can I do now?
Or tell me what you guys have done.

 

Most guys will either buy a US T2 harness, or modify their US NA harness to work and toss the JDM harness.

 

The least headache method is to buy the US t2 harness.

 

I am going with the us harness then .Thanks guys.

 

I don't think the wipers ac/heat run off the ECU (the unit under the passenger side carpet).

 

They don't, they run right into the front harness at the passenger kick panel. Still, much of the wiring travels through the EM harness. It also shares some power/ground connections If he wanted to wire them up anyway, he's still need to get a US harness to pull those circuits out of. He'd end up with a hacked up half assed harness.

It could be done assuming you have expert knowledge of the series 5 wiring harness. But it's much less headache to "do it right the first time" and use the proper harness with the right circuits built in from the factory.