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Old 07-21-2003, 04:54 AM   #1
scobaru
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Default plug and play 1.8 to 2.2

I have a 94 1.8 and I wanna swap it for the 2.2 engine from 93 to 95 or 96 how similar are the 2 engines? is it a plug and play or do I need everythign else I'd need for a swap?
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Old 07-22-2003, 11:40 AM   #2
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why not just go to a 2.5?? you can either go ghetto and use the 1.8 ECU which is easy and straightforward and actually works really well or you can swap ECUs and harnesses as well. If yougo the second route youde be limited to early model 2.2s because if you used an ECU from a 96 and up car it would be OBDII and you are OBDI and it stops being as easy swap.
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Old 07-22-2003, 02:13 PM   #3
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give me a ej25 for the same price as a ej22 then I'll do it but chances are you can't find one soo thats why I want an ej22 not to mention its a close deck. so is the swap with an ej22 just plug and play?
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Old 07-25-2003, 08:55 AM   #4
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Quote:
Originally posted by scobaru
So is the swap with an ej22 just plug and play?
Have you found out anything more?
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Old 07-25-2003, 02:09 PM   #5
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whatever is in this post is what I found out
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Old 07-26-2003, 12:47 PM   #6
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Quote:
Originally posted by scobaru
not to mention its a close deck. so is the swap with an ej22 just plug and play?
only the turbo block is closed deck. and one of these will run you way more then an ej25. the turbo block came in the 90 to 94 subaru legacy TURBO. the n/a ej22 is not closed deck and is not worth the time to swap. considering the cost of a 2.5 if you look at how much more hp it has then you would see that in the long run the 2.5 would be best. an rs drivetrain can be found for fairly cheap. search the private forsell adds on here.

also, no swap is plug and play, yes you can use your old ecu, but you will run into a mass of problems and the motor will not run as it should. wire in the ecu of whatever motor you get.
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Old 07-28-2003, 04:20 PM   #7
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i am going to try and keep this as nice as possible.

1: your car is 94 - OBD1
2: is your car AWD or FWD?
3: 96 and beyond are all OBD2
4: 96 and beyond are all AWD
5: 94 to anything (even wrx) engine will go in fine wiring harness will have to be changed on 96 and beyond (point 3)
6: 2.2 from 95 will swap in no problem if you use your tranny or same tranny as you have now (awd or fwd, auto/5sp dont matter)

it's ok, i've done 95 to 01, 1.8 -> 2.5, obd1 -> obd2, fwd -> awd
..took me a while, but once it was done car was crazy fun.

all i can suggest is do your research
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Old 07-28-2003, 06:04 PM   #8
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They have hit this right on the nose. I helped pull a 1.8 out and put a 2.2 block in. They still ran off a stock 1.8 ecu and couldn't get it to run and I think they have yet to. I'm not sure if that all the problems(most likly not). Correct me if I'm wrong but doesn't the 1.8 ecu run a different A/F ratio seeing the the 2.2 air filter and injectors are a little bigger.

Chris
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Old 07-29-2003, 12:41 AM   #9
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welll
yeah it will most likely run like crap
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Old 07-29-2003, 08:55 AM   #10
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Quote:
Originally posted by RSimport
Correct me if I'm wrong but doesn't the 1.8 ecu run a different A/F ratio seeing the the 2.2 air filter and injectors are a little bigger.
I don't think it would be a matter of the ECU trying to run a different A/F ratio, but might not have the range to run the bigger injectors properly.
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Old 07-29-2003, 09:22 AM   #11
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thats true I didn't think of it that way. Also now that I think about it I think I remember people running the 1.8 ecu and a 2.2 motor

Chris
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Old 07-29-2003, 02:36 PM   #12
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Quote:
Originally posted by RSimport
thats true I didn't think of it that way. Also now that I think about it I think I remember people running the 1.8 ecu and a 2.2 motor

Chris
was a piggy back involved?
if you doa 1.8 to 2.2 swap, get the 2.2 ecu, it should not run more then 100-150$
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Old 07-30-2003, 09:07 AM   #13
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Quote:
Originally posted by awd4ever

was a piggy back involved?
if you doa 1.8 to 2.2 swap, get the 2.2 ecu, it should not run more then 100-150$
First, what do you mean by piggy back? Never heard that term before. Also the kid that I helped put the motor in didn't bother telling me he put the 1.8 injectors in the 2.2 motor and also he was using the 1.8 air box. The kids dad owns a car lot and he has ever thing he wants. Not to mention he gets everything he wants. After I found this out I realized how dumb the kid was because he tried to do this. I'm correct to say that the kid is dumb right? Because since he did this there wouldn't be enough air or enough fuel to start the 2.2 since both our smaller in the 1.8.

Chris
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Old 07-30-2003, 09:40 AM   #14
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my 1.8ECU runs my 2.5 with 2.5 injectors fine, runs alittle rich though. ive seen a 1.8 ECU run a 2.5 DOHC with 1.8 injectors, also worked fine. True im not making the full potential that the engine has because im running rich, and my 6k rev limiter but for the price and amount of work involved i do not think you can beat the value vs. performance gain. I can imagine these problems i have are the same that one would find on a 2.2. It is by no means "a mass of problems" and although it doesnt run as strong as a 2.5RS it in no way runs crappy. In fact it runs really good.
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Old 07-30-2003, 03:33 PM   #15
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Quote:
Originally posted by RSimport

First, what do you mean by piggy back?
...injectors
...1.8 air box. ...wouldn't be enough air or enough fuel to start the 2.2 since both our smaller in the 1.8.

Chris
Piggy back is a chip that modifies the signal from / to your ECU. Timing, temp whatever. Depending on the transplant you do, different level of chip complexity is involved, to the point of stand alone ...

I dont know the max fuel flow for 1.8 injectors vs 2.5 injectors, but at idle it would not matter. Youd run into problems closer to redline. Thus the car would (read: should) still start and run even with civic injectors Your fuel pump could be dead/not hooked up. Your fuel filter could be clogged. Your injectors could not be getting power. Your ECU could be fried (very possible depending on how he removed it, if he unpluged the battery.. if he's dumb )

Air box will not matter, you dont even need it, you can just mount a filter on a Throttle body, so any air box is better then no airbox.
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Old 07-30-2003, 04:31 PM   #16
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I would have thought this would have made a difference but I guess thats why I'm still a noob correct?

Thanks for the information though

Chris
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