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Old 03-31-2006, 02:18 AM   #1
Hoffman
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Member#: 64125
Join Date: Jun 2004
Chapter/Region: MAIC
Location: Western Maryland
Vehicle:
2007 WRX
Urban Grey Metallic

Default Legacy EJ20T swap...

Ok.... so... everyone will probably think its pathetic... but oh well. So I started my swap project, an EJ20T replacing my very very dead, ej25, about a year ago. Since then the car has been to 3 different garages, 2 parking lots, and alot of sitting around. Started out where it died, was towed to a garage I rented (too small), then to a shop, where the motor was swapped. It sat around for a while here and there, and now it is my new garage. I have just recently aquired more time, and we have started really going to town to get this thing done RIGHT.
Ill get pics soon, but we started with prepping, by taking the seats out to do the wiring easier... and 3 hours later the interior was totally stripped. (By that i mean no ceiling, no moonroof, no carpet... nothing...) This was to clean it all up and run some wiring and fix a few things. Ill try to update as much as possible.

Anyways, some questions... does anyone know of a wiring adapter? I really want to make sure I cant buy my way out of this headache before i go cutting the harness. The only thing remaining is electrical, and I have to finish the FMIC. Any help is appreciated at this point. Thanks -Joe
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Old 03-31-2006, 02:57 AM   #2
wrx_driver_2002
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Chapter/Region: NWIC
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1995 Impreza Coupe
w/ "Extras" :-)

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EJ20T is pretty vaugue. Pictures of the engine or more information? I know someone who has a 1998/1999 Legacy Bulkhead harness that already has a Ver 7/8 harness already spliced in. That would pretty much make your wiring plug and play, as long as your car is a sedan, and is a USDM (MY02-05) or JDM (MY01-04) WRX, or a JDM Ver 7/8 STi engine.
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Old 03-31-2006, 12:13 PM   #3
Jaxx
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Member#: 177
Join Date: Aug 1999
Chapter/Region: NWIC
Location: Austin, Texas, USA
Vehicle:
The 93 W/EJ20K
Series 10 FRS

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no such thing as a wiring adapter .. its split x2, removed unneeded x2, then merge
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Old 03-31-2006, 12:58 PM   #4
Matt Monson
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Location: Teh Ghetto Garage, CO
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99 2.5RS, '85 911
'73 914 and 2012 BRZ

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The closest thing to buying an "adapter" is to contact zephyr250 and send him your harnesses and he'll merge them for you. Or, he also can provide a "kit" with very complete step by step instructions for how to do it.

Regardless, you will need to clarify what engine you have. In Subarus, there is no such thing as an EJ20T, and that is simply something the import yards used to designate that it's a turbo motor. You need to figure out if it's an Ej20G, H, K, R, 5, 7 etc. In all there are about a dozen different Ej20"T" variants out there. Get use some pics of your engine, and we'll go from there to help you out. Also, get the numbers off the plate on the turbo. That's the easiest tell to get in the ball park...
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Old 04-03-2006, 04:34 PM   #5
Hoffman
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Urban Grey Metallic

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Ok ill check when i get back into the garage. I belive its a G... out of possibly a 95 impreza turbo out of japan. Ill confirm. I was just checking to see if there was an adapter available before i chopped my chassis harness... but im just going to screw it and hack the harness off and start soldering. I have enough time.
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