1uz ecu?

[Bulkierzero]

Ok so I bought a 1uz and its now sitting in my car and the guy I bought it from also sent me the ecu for this engine by mail. When I received it the ecu looked like it was ran over a few times by a forklift. Opened it up and the circuit board is cracked in half. The problem i'm having is I cant find another ecu with the same part number or any information on using a different one. Im using a w58 so traction control and trans control i wont be using. The ecu I have now has 3 40 pin connectors with the part number 89661-24220 (closest I can find for sale is 89661-24230) . Im looking for an ecu option that has the engine sensor pinouts the same so I can just plug it in and go.

 

[GC89]

pm Yotarip, he knows his way around the 1uz pretty well and has done more than a few swaps.

 

[f00g00]

The junkyards are full of 1uz's. I'm on vacation now and have seen 3 mkiii's between phoenix to San Jose yards but saw prolly 50 LS400's and SC400's.
Didn't see any Supras at all on the road.
92 93 and 94 looks like the years for that number.

 

[Bulkierzero]

My bad the part number for my ecu is 89661-24220 the one in my original post I meant to say is the closest one I can find.

 

[Yotarip]

Hello,
Just saw your PM. I never consider the ECU part #. Model year of the engine is what's important for the swap. From my personal experience;

1) 91-92 (possibly 93) have a vacuum modulated EGR system and a cold start injector. Any SC400 ecu from 91-95 will run this just fine.
2) 93-95 models have an electronically modulated EGR system and NO cold start injector. The 91-92 ecu will run this but cold starts below 40 F will take a couple tries. Ofcourse the 93-95 ecu will work.

Inquire by the year not part #. Also, open the ecu and check for leaking capacitors. It will be evident by black/brown goo on the circuit board directly under the capacitor. Pass it by if it's leaking.

 

[Bulkierzero]

Hello,
Just saw your PM. I never consider the ECU part #. Model year of the engine is what's important for the swap. From my personal experience;

1) 91-92 (possibly 93) have a vacuum modulated EGR system and a cold start injector. Any SC400 ecu from 91-95 will run this just fine.
2) 93-95 models have an electronically modulated EGR system and NO cold start injector. The 91-92 ecu will run this but cold starts below 40 F will take a couple tries. Ofcourse the 93-95 ecu will work.

Inquire by the year not part #. Also, open the ecu and check for leaking capacitors. It will be evident by black/brown goo on the circuit board directly under the capacitor. Pass it by if it's leaking.

Hi thanks for getting back to me. So does the sc400 ecu pinouts match the soarer harness?

 

[Yotarip]

I dont know for sure but I would suspect the ecu pinouts should be the same. The body harness may have some differences but that's not a problem with the swap.

 

[Chambers]

Also note, 96 and 97 ecus differ as well. I have an early 96 engine in my car, thick rods, and the wiring is a cross between the pre 96 and 97 cars.