SubiNoobie Posted July 20, 2015 Share Posted July 20, 2015 Hey guys, I just picked up a new (to me) 1996 Impreza Outback Sport. It runs pretty rough and the clutch is out. I thought that these cars ran the EJ22, and had planned to swap the one from a 1991 Legacy into it, because that car is toast, and I just put a new clutch in it. Obviously I was wrong, so here I am! I've been looking around and it appears my options are 1) to swap the 2.2 in and use the 1.8 intake 2) swap the complete motor and the ECU/wiring harness from the Legacy in Questions in scenario 1: - Do I have to change the 2.2 injectors into the 1.8 manifold for this to work? - What do I do to the knock sensor, if anything? - Anything else I missed? Questions in scenario 2: - Does it matter that the 96 Impreza is AWD and has ABS but the 91 Legacy is FWD and has no ABS? The plug for the ABS was actually unplugged when I got it. Don't know if there is an issue with the system or what. - In general, how hard is this? Is it just taking all the wiring out and putting it in the other car, or is there splicing? Any information would be greatly appreciated. I've never had to do anything like this. My experience is limited to simply replacing parts on my 91 Legacy to keep it running and driving. New to all this wiring and sensor stuff. Thanks. Quote Link to comment Share on other sites More sharing options...
johnceggleston Posted July 20, 2015 Share Posted July 20, 2015 (edited) swap in the ej22. use the ej18 intake manifold. the ej18 probably has EGR, so you may have to do the "work around." nothing else is needed. i do not know about the clutch, i'm an auto trans guy. so the question is, will a FWD clutch work with an AWD trans. Edited July 20, 2015 by johnceggleston Quote Link to comment Share on other sites More sharing options...
idosubaru Posted July 20, 2015 Share Posted July 20, 2015 Correct, bolt the existing intake manifold onto the EJ22 long block. The EJ18 doesn't have a knock sensor (or the ones i've seen never have) so just remove it from the EJ22 if it's not present. If you need it to have EGR, which all the EJ18's I've seen do have EGR, and the EJ22 does not have EGR - and you need no check engine light - you may have some hurdles and work to do. Does the EJ18 have EGR? Does the EJ22 have EGR?Do you care about emissions or check engine light (does it matter in your state)? The car will run and drive fine either way, it's just a matter of states and preference. I did an EJ18 swap into an EJ25 years ago and ignored the EGR, got the check engine light and it's been that way for years, no big deal, but ther's no emissions inspections in this state so it doesn't matter. Quote Link to comment Share on other sites More sharing options...
SubiNoobie Posted July 21, 2015 Author Share Posted July 21, 2015 (edited) Cool, I guess I will swap the intakes then. Emissions are not tested in the county I live in,and I can live with a CEL. As far as I can tell, neither has a EGR. I used google image search and neither engine has anything like this on the intake However, this did stick out as being different from the intake on my EJ22. No clue what it is, but there are two vaccum lines that run to the intake. Edited July 21, 2015 by SubiNoobie Quote Link to comment Share on other sites More sharing options...
SubiNoobie Posted July 24, 2015 Author Share Posted July 24, 2015 Little update: Got the 2.2 swapped in. Couldn't get it to firem then realized I had not swapped out the crankshaft and camshaft position sensors. Decided to just pull the 1.8 intake off and swap the wiring harnesses. Swapped harnesses, had to change PCV sensor and keep the 1.8s throttle body because the TPS on the 1.8 is 3 wire and the 2.2 is 4 wire. Everything fired right up after reinstall. Happy ending? Right? Of course not! The 2.2 I installed had a new clutch put in 3k miles ago, but its slipping now after the motor swap. No clue what could have went wrong. Thanks for all the help guys. Quote Link to comment Share on other sites More sharing options...
SubiNoobie Posted July 24, 2015 Author Share Posted July 24, 2015 Almost forgot, little EGR update: Upon closer inspection...neither engine had an EGR valve or pipe, but thereis an EGR wiring bracket in the engine bay (pictured above), My onlyguess is that this is not the first time a swap has been done to thiscar. I jusr left the vaccum hoses hang and unplugged the electricconnector. Quote Link to comment Share on other sites More sharing options...
idosubaru Posted July 24, 2015 Share Posted July 24, 2015 nice job getting that done. vacuum lines are usually different for a variety of reasons - cruise control has a vacuum line, other solenoids need vacuum. those are always easily worked out. i haven't seen that many but i thought all EJ18's had EGR so not surprised you found some hints of it. Quote Link to comment Share on other sites More sharing options...
lemonline Posted February 26, 2016 Share Posted February 26, 2016 Hello, I´m kind of in the same project here... but I also would turbocharge the ej22 after the swap. In that case, would it be better to use to swap the ej22 ecu into the impreza?, would it do a better job managing the air pressure or the fuel?... or it doesn´t really matters... just thinking about 5 or 6 psi of boost with stock internals. I´ve seen the wires and there are a lot... Is it possible to connect the ej22 ecu, and just add the missing wires, for the maf, tps, and missing sensors? Quote Link to comment Share on other sites More sharing options...
lemonline Posted February 26, 2016 Share Posted February 26, 2016 Another question. If I go with the "changing the manifold" option... Should I also have to change the injectors? I´d like to keep the big ones because of the boost Quote Link to comment Share on other sites More sharing options...
idosubaru Posted February 26, 2016 Share Posted February 26, 2016 (edited) depends how valuable your time is. if you're bored and have gobs of time sure do all that wiring work to swap over all the EJ22 stuff. personally i'd just run the EJ18 ECU to avoid all the work - those NA ECU's aren't likely substantially different enough to provide massive gains. Edited February 26, 2016 by grossgary Quote Link to comment Share on other sites More sharing options...
lemonline Posted February 26, 2016 Share Posted February 26, 2016 depends how valuable your time is. if you're bored and have gobs of time sure do all that wiring work to swap over all the EJ22 stuff. personally i'd just run the EJ18 ECU to avoid all the work - those NA ECU's aren't likely substantially different enough to provide massive gains. I just want to get it running asap, lol. Do the harness cables under the dash of the ej18 plug into the ej22? Because that would be great... engine swap, ecu swap, and no need to strip the whole car. Quote Link to comment Share on other sites More sharing options...
idosubaru Posted February 26, 2016 Share Posted February 26, 2016 Do the harness cables under the dash of the ej18 plug into the ej22? Oh - you want to install an EJ22 engine in your cabin under the dash? I don't think an entire engine will fit too well in the front seat or under the dash, but I've never done it. But no, EJ18 and EJ22 ECU's are not interchangeable if that's what you're asking. but again - ECU I doubt matters. all the ECU does is meter incoming air and properly adjust fuel trims. they take AIR FLOW readings and add FUEL. Both ECU's will do that. Same thing with EJ22's and EJ25's - the ECU's are entirely swappable with no advantage either way. there are some tangents to that discussion but they're minor and genearlly reserved for high end applications. for that matter if you're wanting more horsepower you might want to consider an EJ25 swap or frankenmotor - EJ25 block with EJ22 heads. you can probably end up with the same horsepower but less overall work, fewer parts, and more reliability. Quote Link to comment Share on other sites More sharing options...
lemonline Posted February 27, 2016 Share Posted February 27, 2016 wow, dind´t sound so ridiculous in my head, I guess the translation came out really funny. Frankenmotor sounds great, but its no easy to find the parts here, and everything is too expensive. Just a timing belt kit costs around 800 usd. I´ve was planning to turbocharge my car and just happend to got a great deal on the ej22, so I went with the swap. Yesterday I looked into both manifolds, and like you explained it fits, but I saw that the throttle body´s "gate" is a lot smaller, and I don´t like to have that kind of funnel. So I guess I´m screwed and my only choice left is to get along with all the wires mess. Also found this tutorial: http://www.shoptalkforums.com/viewtopic.php?f=28&t=136053 that gave me some hope. Quote Link to comment Share on other sites More sharing options...
D3F0 Posted March 28, 2016 Share Posted March 28, 2016 With the EJ18 ECU My redline was 500 rpm lower than the stock EJ25D had stock. Is your car actually revving out to redline? Quote Link to comment Share on other sites More sharing options...
lemonline Posted March 28, 2016 Share Posted March 28, 2016 Well... don´t know about SubiNoobie... In my case.. I had a few surprises... My impreza is an ej16, and it happened to be a lot different as the ej18. Same engine plugs, same tps, same maf, different ecu, diffetent intake manifold, smaller throttle body. I have now in my garage, the complete ej16, the complete ej22, and some parts of an ej18, like intake manifold, injectors, harness... I finally decided to go with all of the ej22 stuff. I´m right in the middle of the process now, and having no fear anymore to the wiring... Also researching on piggybacks to fit one for the fuel management (because of the turbo). I think i would go with the apexi safc neo Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.