Wanted: Liberty RS EJ20T ECU info.

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andys2
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Wanted: Liberty RS EJ20T ECU info.

Post by andys2 »

I need the pinouts. I've searched and searched but I can't find what I need. Does someone out there please have this information?
vrg3
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Post by vrg3 »

"Just reading vrg3's convoluted, information-packed posts made me feel better all over again." -- subyluvr2212
Matt Monson
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Post by Matt Monson »

Same as a 94 WRX...
Actually, same as an USDM EJ22T with the exception of the ignition where there are 2 more wires...
1974 Porsche 914 Cam Am Limted Edition AKA the Bumble Bee
1973 Porsche 914 2.0 l -Suby swap pending
1968 Porsche 911t survivor 47k original miles
2000 2.5RS daily driver.
1999 2.5RS w/ 50+ extra whp
Suby Hai!
andys2
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Post by andys2 »

OK - I've made some progress with the wiring thanks to the above links. However, there are still some wires that remain a mystery. I have two wires coming off the ecu that are unaccounted for - but I can't remember the pins at the moment.

Also, I have a bunch of wires coming off the engine harness loom that are also unaccounted for. I'm talking about the engine harness connector that has three plugs. One small one and two larger ones - all multi pin rectangular connectors. Does anyone have a diagram that describes ALL the wires coming off the engine?

The wiring doesn't seem to be that bad. Remember that this is a conversion from an impreza 1.8 ecu to the JDM Turbo Legacy. Once the 'ecu harness' is seperated from all Legacy wiring there are only about a half signal dozen connections that need to be made to the impreza wiring as the engine and turbo control wires remain intact. The rest of the wires are power and grounds that I'll do seperatly.
Matt Monson
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Post by Matt Monson »

You are likely dealing with the wiring for the AWIC pump...
1974 Porsche 914 Cam Am Limted Edition AKA the Bumble Bee
1973 Porsche 914 2.0 l -Suby swap pending
1968 Porsche 911t survivor 47k original miles
2000 2.5RS daily driver.
1999 2.5RS w/ 50+ extra whp
Suby Hai!
andys2
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Joined: Mon Feb 14, 2005 8:00 pm

Post by andys2 »

nope - you can see on the legacy diagram that there is a pin for this. This is the same pin I have already accounted for.
Matt Monson
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Post by Matt Monson »

I am just pulling this from memory from my car, but I think what you are dealing with is turn signal and corner light plugs. If you look at the wiring diagram, those cars were wired differently than ours. This threw me a bit of a curveball when I did mine.

IF that isn't it, get us some more detail of where they are on the harness, what color they are, and how many wires, and we'll see what we can come up with...
1974 Porsche 914 Cam Am Limted Edition AKA the Bumble Bee
1973 Porsche 914 2.0 l -Suby swap pending
1968 Porsche 911t survivor 47k original miles
2000 2.5RS daily driver.
1999 2.5RS w/ 50+ extra whp
Suby Hai!
snowjob
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Post by snowjob »

http://www.driftquebec.com/legacy/1992_legacy.pdf

Check out this site, it's the factory service manual for you engine and has all the answers you need.

Good Luck
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99 LGT Limited
andys2
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Post by andys2 »

holy crap!! that's amazing. thanks.
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