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Old 04-18-2007, 08:06 PM   #1
reddevil
Scooby Guru
 
Member#: 64673
Join Date: Jun 2004
Chapter/Region: NWIC
Location: portland
Vehicle:
1990 Legacy wagon
goes 12.387 @ 116.5

Default Blowing the main fuse to ECU everytime I turn the key

1990 Legacy.

So I pulled the motor out and replaced a piston this weekend.

Reinstalled the motor Sunday. Fired it up about 10-15 times with it still on jack stands until today, when I set it down, AND CLOSED THE HOOD.

Then I turned the key and the 30 amp fuse popped. Scrounged another and stuck it in. Made it down the block. pop. pulled it out, replaced it. pop.

Went and found some more fuses (they are $3.99 each!). Replaced fuse.

Drove about 40 blocks, and 1.5 blocks from the shop, pop. Replaced fuse. pop.

I am out of fuses.

So.....This is the fuse for the power to the ECU. I must have a short somewhere, but when i use the multi-meter, nothing shows up...

Any ideas?

and yeah, I am going to have to tear out the underside and ECU to check ALL the wires.
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Old 04-18-2007, 11:48 PM   #2
Arctic Penguin
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Member#: 119532
Join Date: Jul 2006
Vehicle:
2006 WRX

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find the pinched wire
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Old 04-19-2007, 09:26 PM   #3
reddevil
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Member#: 64673
Join Date: Jun 2004
Chapter/Region: NWIC
Location: portland
Vehicle:
1990 Legacy wagon
goes 12.387 @ 116.5

Default

It was a injector wire. They are hot hot hot off of the ignition relay. But before I figured it out, I fried the ignition relay, so off the to the junkyard to salvage an ECU, and the three main relays that are situated up there.

It runs again.
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