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EJ22T into a 97 Impreza wiring q's
Posted: Tue May 30, 2006 2:39 am
by Jman
alright i have a 92 legacy turbo that the body is shot on...so i am going to pull the engine rebuild it and put it into my 97 impreza wagon that has the n/a ej22 engine now whats the easiest way to do all the wiring?? should i just take the ecu and harness from the t-leg and put it all into the impreza or is there any other way to do it that is easier without me buying a stand alone set up since i'm on a budget???
Posted: Tue May 30, 2006 4:07 am
by stipro
I would say the "eaisest" way to do it is to swap the wiring harness, and ecu aswell. That way you know it will run until you maybe decide to go stand-alone in the future. Your going to need the turbo's sensors aswell. (the one's the n/a dosent come with.)
Posted: Tue May 30, 2006 5:52 am
by Jman
can't i use the turbo sensors off the legacy??. and also am i gunna go insane swapping all this over or is it not too frustrating
Posted: Tue May 30, 2006 5:31 pm
by Natoe
i have done this... and i did it the hard way, you can probably look up the way i did.
what i did: modified my impreza harness to plug into the EJ22T, hacked off AT the ECU, spliced on all the wires to the new ECU, ran wires for boost control.
what you SHOULD do: use the 22T engine harnesses, follow them back to the ECU so there is less splicing to do. tricky part here is that the ECU is on the driver side in a legacy and passenger side for the impreza. you will need to splice wires like VSS and ignition and grounds etc from the impreza harness (everything but engine stuff which is taken care of by the harness which you left intact and plugged into the ECU)
the nice thing about the way i did it though, my legacy ECU is where the impreza ECU used to be, and though there were more wires i had to cut and splice in the long run, everything is very simple and straight forward. i left boost control stuff connected to the ECU and ran it through the firewall where AC goes (which i dont have) to the passenger strut tower where the stuff hangs from.
see my swap threads on workin out little kinks here and there like you have to add a diode to the self shutoff control switch.
as for complexity, if your ever going to be able to do a turbo swap, you can do this one its really not too hard. but you need to be able to use a voltmeter and have/learn basic understanding of ECU/sensor wiring