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running ej22 of ej18 computer

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roverv8bay Officially Full-On Dubber

250 posts · joined Jan 2013 ·

#952050
G.day all. I have started to do the harness for the ej22 I swapped for ej18 but only have the ej18 harness & computer can i use it as a complete set up any help appreciated
ernie

vlad01 Compulsive Aussie Vee Dubber

4,270 posts · joined Jun 2010 ·

#952148
it may run but I doubt it will run any good, probably causing damage long term.

the computer would likely be capable of running it but the calibrations would be for the ej18 and not the ej22 thus ignition, A/F and VE maps would be fairly wrong for your engine.

71 notchback,
Past owner of, 70 NB, 73 SB and 72 FB TLE

mackaymanx Custom Title Time!

1,611 posts · joined Jan 2006 ·

#952158
Don't be so lazy Ernie and google it. Just did it myself and found multiple posts on the Subaru forums of people successfully running EJ22s with EJ18 ecus.👍
Quote of the week
"Do I wish to send them to you again, nope, no interest can't be bothered really, to much hassle for little or no return."

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Joel Now containing 100\% E-Wang

9,368 posts · joined Feb 2006 ·

#952185
Agreed, it's no different to me running an EJ25 on EJ22 management, the computer will adjust fine, the only thing you should really do is fit an aftermarket fuel pressure regulator to compensate for the extra fueling so it doesnt lean out under load

I run a Turbosmart on mine.

roverv8bay Officially Full-On Dubber

250 posts · joined Jan 2013 ·

#953382
G'day all. Mackaymanx not being lazy I have googled but I find that the most reliable stuff comes from our own community sites. Thanks to others for response. Maybe some 1 who has done their own wiring could put their info into a new forum or into this 1. I know you can get it done but if you have the knowledge but just need something to follow the cash saved could be used for other work you cant do yourself. Or the blue tag etc.
Ernie

seagull Compulsive Aussie Vee Dubber

4,979 posts · joined Dec 2003 ·

#954112
Max has two JDM ej18 engine for sale
there test engines that have been in storage at his house for years

0413692533
Looking for that special lady : PM me for coffee & cake