Dies hitting boost after harness swap(UPDATE) FIXED!!

Headlights to tailights and everything in between.

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alexandermf
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Re: Died middle of highway, no spark/etc...

Post by alexandermf »

I have power from ecu to ignitor to coil.... Still stuck

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alexandermf
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Re: Died middle of highway, no spark/etc...

Post by alexandermf »

Well agree almost a month we have narrowed the problem! This yellow wire in pic isbt getting any power unlike other wires. According to wiring diagram it powers pretty much all the relays... We jumped that wire and the car turned on!looks like the circuit board inside fuse block took massive shit? I'll be going yo junkyard tomorrow for a used one

Image

Can anyone clarify if the turbo andNA fuse blocks under hood are interchangeable?

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cj91legss
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Re: Died middle of highway, no spark/etc...

Post by cj91legss »

they should be the same for both under the hood and under the dash
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alexandermf
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Re: Died middle of highway, no spark/etc...

Post by alexandermf »

That's what I thought thnx!
Hopefully this is my fix :/
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alexandermf
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Re: Died middle of highway, no spark/etc...

Post by alexandermf »

It lives! After 3 weeks and one day... The fuse block circuitboard was the problem and wasn't getting power to the yellow wire which runs to the relays... What a freakin nightmare, I've never seen this before and neither had my mechanic who is one of the smartest car ppl I know! Hope this helps other ppl and troubleahooting in the future

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Legacy777
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Re: Died middle of highway, no spark/etc...

Post by Legacy777 »

That's really weird! Glad you finally figured it out though!
Josh

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1990 Legacy (AWD, 6MT, & EJ22T Swap)
2020 Outback Limted XT

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alexandermf
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Re: Died middle of highway, no spark/etc...

Post by alexandermf »

Ya tell me about it.. I've never seen anything like that, my wallet doesn't hurt too bad but three weeks in the jeep without the top was getting cold :P

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Bartek
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Re: Died middle of highway, no spark/etc...

Post by Bartek »

For me it ended up with ECU replacement. I am not a true believer of fried ECUs theories so it could be a helpful hint if it's going to happen again with my new ECU.
alexandermf
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Re: Died middle of highway, no spark/etc...

Post by alexandermf »

Gremlins! My car has been running perfect, threw a brand new yellow optima and radiator in and I come back from class and it won't start... Sounds like the same damn problem... I'll have to look at it in the morning

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Someperson
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Re: Died middle of highway, no spark/etc...

Post by Someperson »

U got something frying ur boards then bro...
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alexandermf
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Re: Died middle of highway, no spark/etc...

Post by alexandermf »

What would that be?

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Legacy777
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Re: Died middle of highway, no spark/etc...

Post by Legacy777 »

Check all the grounds, and check the voltage....maybe the voltage is too high.
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
alexandermf
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Re: Died middle of highway, no spark/etc...

Post by alexandermf »

I'm guessing its the ign control module....? That's all I can think of, grounds are all good, what's too high of voltage gonna be?

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Legacy777
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Re: Died middle of highway, no spark/etc...

Post by Legacy777 »

If the regulator in the alternator is bad, it could be frying things. Anything over 14.4-14.6 is probably a little high.
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
alexandermf
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Re: Died middle of highway, no spark/etc...

Post by alexandermf »

14.2 is what its reading, that should be perfect... I'm going here in about a couple hrs to switch out ignition module.. crossing fingers and if this isnt it I'm gonna lose it

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alexandermf
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Re: Died middle of highway, no spark/etc...

Post by alexandermf »

Switched out a new ignitor module and tried starting it and the exhaust backfired! Tried again and its def flooded.. from all the times cranking with no spark. Don't have all my tools with me to take the spark plugs out to clean/dry them so ill have to wait about half hour and try it again with my foot to Tue floor for the ecu to register flood start and skip a pulse from injectors. Hopefully it'll fire up then

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tsbpenguin
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Re: Died middle of highway, no spark/etc...

Post by tsbpenguin »

Not sure where you're at in CO but I could come help out in the next couple days if you're anywhere near Westminster. Plus I could grab that pump from you if it's still available.
In between Subies
alexandermf
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Re: Died middle of highway, no spark/etc...

Post by alexandermf »

Thnx for offer but I have a buddy coming to help and I'm down south in the springs, another friend actually came and picked the pump uo

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alexandermf
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Re: Died middle of highway, no spark/etc...

Post by alexandermf »

Well its back alive, turns out it was def the ignition control module and I'm hoping for now troubles with spark for a long time!

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Legacy777
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Re: Died middle of highway, no spark/etc...

Post by Legacy777 »

What exactly are you calling the ignition control module?
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
alexandermf
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Re: Died middle of highway, no spark/etc...

Post by alexandermf »

The ignitor that powers the coilpack. The lil chip that plugs into a harness and has to ne grounded

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Legacy777
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Re: Died middle of highway, no spark/etc...

Post by Legacy777 »

Ok, so the igniter. Just wanted to clarify.

Thanks.
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
alexandermf
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Re: Died middle of highway, no spark/etc...

Post by alexandermf »

Ya sorry someone told me that was the full name or something

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alexandermf
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Re: Died middle of highway, no spark/etc...

Post by alexandermf »

Wow never been sooo fuckin frustrated with a car! Died on me again middle of the road! No spark

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alexandermf
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Re: Died middle of highway, no spark/etc...

Post by alexandermf »

Does anyone know Wtf could be going on here.... A buddy of mine thinks it's a wire that got cooked by turbo shorting shit out

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