Ea82-ez30

[WoodsWagon]

My current wagon is running an EJ22, which is about all the rest of the EA82 drivetrain can handle with me driving. I'm bringing back a 86 T-wagon from wyoming this summer, and I know that motor won't last long. So I'm thinking an EJ 5spd and an EZ30 would be a nice replacement. Mabe with a turbo in the future to match the 4WD TURBO badging on the wagon. I can pick up an EZ30 for a reasonable price, its out of a flood car. I pulled a valve cover and it looks clean inside. The hitch is that the wiring stops at the engine plugs. So no ECM or firewall harness. It's out of a 2000 LLBean.

 

I'm at the stage I was when I first thought about an EJ22 swap. That worked out well, so now I need to move up.

[Numbchux]

would be sweet. the EZ30D is only an inch or so longer than an EJ22. so it might even fit in the EA82 engine bay with the stock radiator location. radiator hoses are a bit different (EZ30 uses a vertical-core radiator instead of horizontal like phase-I EJs and EAs), so you'll have to be a bit more creative with that....but still doable.

 

for wiring, you have a couple options. try to find a used harness (good luck....but might be doable), new one from the dealer, to the tune of $500ish (IIRC 300 for a new bulkhead harness, and probably a couple hundred for the ECU). Or a standalone. which will be well over a grand.

 

stock wiring is similar to EJs of the same time period. more complex than the OBD I EJ22, but not too bad.

 

 

 

be careful with it though, the torque of the EZ30 will be able to munch up stock 5-speed gears if abused.

[idosubaru]

junk yards have the engine harness available - these are new enough that some yards are still holding the car. keep calling until you find one that will pull the harness for you or at least cut the plug ends off the harness in the engine bay and at the ECU. these guys have one: 303-731-7994

[s'ko]

I know that this would be a pita but what is you got plugs that matched the ECU connections and then re-wired from scratch. They might have to be from a 2000 Outback.

 

It would be really tough with the plugs from the engine and getting the right wires to match the right pin.

 

This sounds like te age old question.... Time vs. money.

 

keep us posted

BW

[kingbobdole]

MAKE SURE you get the correct year car... the first few years of the EZ30 saw quite a few changes...

 

As far as wiring goes... It's rather complex... the largest harness I've built to date...

 

I went from this, the entire harness:

 

To this, the engine harness:

 

in about 20 or so hours..... I'll be putting mine into an XT

[john in KY]

Looks to me like you left out one wire in the new harness.

[SubaruJawn]

God i wish i was that smart.

all the wires in the picture look like a nightmare.

the wires in second picture looks like a bad dream.

Major Improvement:headbang:

[WoodsWagon]

Now see when I did my EJ swap, my wiring harness looked like picture one to start with, then I tried snipping it down to the minimum, got impatient, and stuffed all the extra wiring up into the dash cavity next to the steering column. It's still working 2 1/2 years later and it's only caught fire once. The SMJ got caught under the gas pedal, and what with the amount of time that spends crushed to the floor, it smooshed the wires.

 

The later EZ wiring has an immobilizer system built in. This motor is out of a 2000, I think, pretty sure, mabe an 01 at the latest. So it should be the earlier wiring harness.

 

I've had a reliable source tell me that the ECU plugs are the same physical shape between the EJ25 ECU and the EZ30 ECU. The car that the EZ30 came out of had been swapped to an EJ25 by a shop in florida. The harness must be fairly similar if you can swap the other direction.

[joostvdw]

Why would one swap from an EZ30 to an EJ25? Only thing I can think of is engine damage or mileage?

[kingbobdole]

Why would one swap from an EZ30 to an EJ25? Only thing I can think of is engine damage or mileage?

You can pick-up an EJ25 for like $500... I couldn't find an EZ30 for anything under $2800...

 

As far as the wiring being similar... uhh no. I've built Both an EJ25 harness from a 2001 SOHC EJ25 and the recent 03 EZ30 harness. The plugs on the ECU may be similar, but what does that get you? The Ej ECU will not run the EZ... EZ is coil on plug and uses a fuel controller and are all fancy autos. Plus the engine side of the harness is the biggest change.. The EJ25 is similar to the 22... only 2 plugs going to the back of the engine. Actually.. I just compared both wiring diagrams.. the EJ ECU only has 3 connectors, the EZ has 4... 2.5 has 93 pins at the ECU, EZ has 105. The 2.5 diagram is 4 pages long... the EZ is 10. yeah, freakin 10 pages of wiring. so no go there...

This is the harness I built for the Rx, SOHC EJ25.

 

As far as the immobilizer goes, there was another major change that year... the R. ALL EZ30Rs are immobilizer cars... if no R no immobilizer. You an tell just by looking as well. The R has a plastic intake and V-tec with cam timing.... and 20 more ponies.

[WoodsWagon]

Why would one swap from an EZ30 to an EJ25? Only thing I can think of is engine damage or mileage?

 

Flood car. When I checked the tranny dipstick, mud chunks came up.

 

I was thinking that if the ECU connectors were the same shape, I could repin them and build my harness, then only have to buy a EZ30 ECU. Having lost patience trying to snip down a EJ22 harness, I'm thinking more along the lines of building my own harness this time. Reuse the sensor wiring, but ditch all the ground and power wiring with a billion splices.

 

The fancy auto stuff will be going in the can. I don't like autos, and I really don't like ones with mud chunks in them. Researching the Nabisco crew seems to suggest an EJ flywheel will bolt up to the EZ crank, and the 4 bolt EJ tranny will bolt up to the 8bolt EZ bellhousing.

 

Do you have a copy of the EZ harness that I could use?