93 Legacy Wagon non turbo engine replacement question

Heads, valves, pistons, rods, crankshaft, etc...

Moderators: Helpinators, Moderators

Post Reply
terryg911
In Neutral
Posts: 29
Joined: Thu Mar 05, 2009 10:09 pm

93 Legacy Wagon non turbo engine replacement question

Post by terryg911 »

OK I am a newbie and confused.

93 Leagcy wagon EJ 22 motor 5 speed manual non turbo motor. The motor blew and we went to the Subaru Junk Yard in Gaston OR and got a replacement motor. So far so good right? Well THe old motor coming out has two electrical wiring harness plugs that plug into the car wiring harness in the Driver side fender well. However the new motor ... has three electrical wiring harness plugs right were the old motor had two. We just noticed this and we are confused.

The new motor (an autiomatic tranny) was supppose to be a direct drop in, however three big fat plugs. The old motor (5 Sp Manual) has only two big fat electrical plugs. What is up with the thrid plug?

The third plug is in my hand the two that match the old motor are dangling

Image
Thanks
Terryg911
92wagon
Second Gear
Posts: 349
Joined: Tue Mar 11, 2008 3:15 am
Location: Maine

Re: 93 Legacy Wagon non turbo engine replacement question

Post by 92wagon »

What year/make/model engine did you pull for the replacement?? I also recently did an engine swap in my 94. I took a 1992 auto 2.2 and put it in my 94 5-speed 2.2 with no real problems.
1992 Legacy L Wagon 4WD Auto 219K (gone)
1994 Legacy SunSport Wagon FWD 249K (gone)
1994 Legacy Ti 4WD Wagon 5speed 182K (162K on engine) (gone)
1991 Legacy L 4WD Wagon 5speed 202k
1994 Legacy L 4WD Wagon 5speed 170K
1991 Legacy SS logbooked Rally Car
terryg911
In Neutral
Posts: 29
Joined: Thu Mar 05, 2009 10:09 pm

Re: 93 Legacy Wagon non turbo engine replacement question

Post by terryg911 »

We are not sure .... We were told that it is a 22 Liter dual port head that was suppose to drop in. It looks the same except an extra plug
92wagon
Second Gear
Posts: 349
Joined: Tue Mar 11, 2008 3:15 am
Location: Maine

Re: 93 Legacy Wagon non turbo engine replacement question

Post by 92wagon »

I believe that you need a 1990-1994 engine for a direct drop in because its OBD 1 instead of OBD 2. I'm not 100% sure but if someone else could clarify.
1992 Legacy L Wagon 4WD Auto 219K (gone)
1994 Legacy SunSport Wagon FWD 249K (gone)
1994 Legacy Ti 4WD Wagon 5speed 182K (162K on engine) (gone)
1991 Legacy L 4WD Wagon 5speed 202k
1994 Legacy L 4WD Wagon 5speed 170K
1991 Legacy SS logbooked Rally Car
Mister Anderson
First Gear
Posts: 215
Joined: Sun Aug 28, 2011 7:20 pm
Location: Vancouver, WA/ Spokane, WA

Re: 93 Legacy Wagon non turbo engine replacement question

Post by Mister Anderson »

The 90-91 EJ22 had 3 plugs on the engine harness. The 92-94 only had 2. All gen 1 legacies were OBD1.
91 black SS 5 speed (Canadian).... Closed deck EJ20G, fully built, V5/6 sti ra drivetrain, haltech stand-alone
93 silver TW 5 speed... rebuilt 22T with 20G heads, wrx ra drivetrain, otherwise stock.
73 kazen red VW bus riviera camper
terryg911
In Neutral
Posts: 29
Joined: Thu Mar 05, 2009 10:09 pm

Re: 93 Legacy Wagon non turbo engine replacement question

Post by terryg911 »

Thanks for the information. What do we do so that we can use the new motor. John told me to just swap the intakes. Is that correct? The new motor (One that we purchased) has a total among the three pluigs of thirty pins. My son counted 24 pins on the two electrical plugs on the Old Motor (blown and in the car). What are the extra 6 pins for?

If we did just swap the intakes will all the electrical connections off the harness (Intake from the Old Motor), then would the electrical connections match correctly to the sensors and stuff on the New Motor?

Thanks for sharing your wealth of knowledge.

Terryg
evolutionmovement
Knowledgeable
Knowledgeable
Posts: 9809
Joined: Mon Jun 16, 2003 11:20 pm
Location: Beverly, MA

Re: 93 Legacy Wagon non turbo engine replacement question

Post by evolutionmovement »

Yes, you can swap the intakes with the intact wiring harness. I swapped a 1993 turbo for a 1990 N/A using the whole intake assembly from the N/A, but I'm running it N/A, so I know this works.
Midnight in a Perfect World on Amazon or order anywhere. The first book in a quartet chronicling the rise of a man from angry criminal to philanthropist. Midnight... is a distopic noirish novel featuring 'Duchess', a modified 1990 Subaru Legacy wagon.
Legacy777
Site Admin
Site Admin
Posts: 27926
Joined: Tue Oct 15, 2002 11:37 am
Location: Houston, Tx
Contact:

Re: 93 Legacy Wagon non turbo engine replacement question

Post by Legacy777 »

This thread has some more info about the differences in engine harness plugs.

http://bbs.legacycentral.org/viewtopic.php?f=19&t=45391


As mentioned, you should just swap the intake manifold.

The other thing to note is the the 92-94 non-turbo Legacies had different fuel injectors than the 90-91 non-turbo Legacies. From my experience the 92-94 injectors flow a little more than the 90-91 injectors. So you need to match the correct ECU to the correct injector. By swapping the entire intake manifold you match the engine electrical plugs and keep the same injectors that match your ECU.
Josh

surrealmirage.com/subaru
1990 Legacy (AWD, 6MT, & EJ22T Swap)
2020 Outback Limted XT

If you need to get a hold of me please email me rather then pm
terryg911
In Neutral
Posts: 29
Joined: Thu Mar 05, 2009 10:09 pm

Re: 93 Legacy Wagon non turbo engine replacement question

Post by terryg911 »

Thank you Thank You Thank You. You all rock given us great advice.

terryg911
Post Reply