1g vr4 with evo3 ecu help!!!!

jaggie · Post by **jaggie** » Sat Dec 13, 2008 8:55 pm

Guys, my project 1G VR4 narrow block,bill's bell +w58 tanny.
The problem...recieved an ecu that could not plug in (same three connectors),however made different fro the 1G harness.
I was told it was an evo 3 ecu...
Can this work wth jack changes /wiring splicing???

jeffball610 · Post by **jeffball610** » Mon Dec 15, 2008 6:19 pm

EVO 1-3 and the VR4 should be the same as far as I know. There could be some changes if the VR4 is a 1990 model or earlier. Check with the guys at ECMTuning.com (DSMLink). They should be able to give you some helpful info about your ECU. You can also look at your wiring harness and see if it matches the pinouts at VFAQ.com. Do you have any pictures of the ECU? Inside and out will be helpful. Is it an EPROM unit? Make sure you have all this info ready when others ask to get the most out of the advice they give.

89coltgt · Post by **89coltgt** » Mon Dec 15, 2008 9:41 pm

Please post up pics of the ecu and harness connectors.

Post by **DJpowerHaus** » Tue Dec 16, 2008 6:23 pm

The Evo 1-3 is equivalent to a 2G ECU, Engine. A VR4 is equivalent to a 1G ECU, Engine.

jeffball610 · Post by **jeffball610** » Tue Dec 16, 2008 7:59 pm

My bad. I thought all EVO 1-3 motors were 6-bolt non OBD and then switched to 7-bolt OBD II with the EVO 4.

89coltgt · Post by **89coltgt** » Tue Dec 16, 2008 8:18 pm

Nope, the evo1-3 have a setup very similar to the 2g.