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Old 08-27-2006, 12:08 PM   #1
Numbchux
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Member#: 71658
Join Date: Oct 2004
Chapter/Region: MWSOC
Location: Duluth, MN
Vehicle:
'84 Brat
4" lift and 29" tires

Default Phase 1 EJ22 swap wiring problem

ok, swapping an EJ22 out of a '92 legacy into my '92 loyale....

I've got:
spark
compression
fuel pressure (to the rails)

but no combustion...
any ideas? I'm going to go try to hook up the CEL, and see if I can get a trouble code, and I'll go from there.
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Old 08-28-2006, 02:58 AM   #2
Storm
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96L Most Over-
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I read the thread on USMB and can't think of any one thing that stands out. It could be the way you have the fuel pump wired, try closing the OEM relay without the load, so the ECU sees it activiating. Maybe the TPS? Make sure it's not telling the ECU you're at WOT during the cranking cycle?

Besides that, I got nothing....

Jay Storm
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Old 08-28-2006, 11:42 AM   #3
Numbchux
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Quote:
Originally Posted by Storm View Post
Besides that, I got nothing....
great....me either....although I still haven't figured out the CEL

I got the fuel pump relay wired how it should now. I hardwired it before because my ECU wasn't grounding it like it should. but then I got the ECU all the powers/grounds it needed, and I could hook the relay up right again.

and I'm assuming that all my sensors etc. work right, since the motor ran great before we pulled it from the donor car, just a few feet from where it sits now.....
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Old 08-28-2006, 12:30 PM   #4
Storm
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Hmmm....

Maybe it's that ECU?
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Old 08-28-2006, 01:49 PM   #5
Numbchux
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'84 Brat
4" lift and 29" tires

Default

Quote:
Originally Posted by Storm View Post
Hmmm....

Maybe it's that ECU?
it should be good since the engine ran, but I though just in case I short-circuited something, I swapped it for another one I have that should be good...and still no go.

When my dad get's home this afternoon, I'll plug it into the '94 and see if it works there...

I just went out and double-checked the fuel lines....again...and they're all correct

only thing I can think of, is the pressure regulator...how does it work? is it possible I disconnected a vacuum line somewhere and it wouldn't let any fuel through?

I think I'm going to disconnect the regulator, and put a bucket under it, and turn the ign on, and see if fuel comes out that end of the rail....maybe something got in there while I was swapping it....


EDIT: just plugged the ECU into our '94 legacy, works fine.

then I went back and I pulled the pressure regulator off, and there is fuel running all the way through the rails. so it has to be the injectors. I'm having trouble beleiving that all 4 signal wires from the ECU to the injectors are getting bad signal, but I'll rig something up to test that today.

is there a sensor (i.e. crank angle etc.) that JUST controls fuel? and wouldn't effect the spark?

EDIT 2: I just checked, and I have good continuity between all 4 injectors, the TPS, and the knock sensor and the ECU...

Last edited by Numbchux; 08-28-2006 at 06:31 PM. Reason: updatez0rz
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Old 08-29-2006, 05:43 PM   #6
Numbchux
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Join Date: Oct 2004
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Location: Duluth, MN
Vehicle:
'84 Brat
4" lift and 29" tires

Default

bump and update:
the timing belts are fine. I sprayed some carb cleaner in the throttle body....and got nothing. I added a couple grounds in a couple places under the hood. made sure all my solders for crank and cam sensors had held, and weren't shorting to any adjacent wires. I'm going to have dinner, and then pull a fuel rail and see if the injectors are getting signal...
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Old 08-31-2006, 05:24 AM   #7
Numbchux
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Location: Duluth, MN
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'84 Brat
4" lift and 29" tires

Default

IT WORKS!!! but it's 4am...full explanation of what I did to make it work tomorrow....but it took about 10hrs....
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Old 12-14-2006, 05:27 PM   #8
gloyale
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What did you have to do to get it to bolt in to Tranny? Crossmember? clutch,torque converter? ETC. I want to do this swap in my 89 GL FT4WD.
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Old 12-14-2006, 11:04 PM   #9
Numbchux
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Join Date: Oct 2004
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Location: Duluth, MN
Vehicle:
'84 Brat
4" lift and 29" tires

Default

Join the USMB. www.ultimatesubaru.org and check out the Retrofitting forum...

I'm in the process of compiling a full writeup on the swap. the first draft of it is available for download. it covers everything except wiring...

need an adapter plate to adapt the EJ engine to an EA tranny. and the flywheel needs to be modified a bit. full explanation in the write-up.

adapter plates available here: www.mroseusa.com
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