95.5-2004 Tacomas & 96-2002 4Runners 4th gen pickups and 3rd gen 4Runners

Electrical mystery?

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Old May 2, 2004 | 06:46 PM
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FusciaRunner's Avatar
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Question Electrical mystery?

hi all, new here and in need of assistance. I have just completed swapping the tired 22-re out of my '85 Runner with a much fresher used long block. I have the swap completed, everthing hooked up, and it won't run. It starts and dies immediatly (3 secs max run time). I checked all wiring, grounds, etc... and I found a wire that runs from the coil into the cab through the firewall that I apparently caught during the removal/installation process and ripped out of something! I'm a decent basic mechanic but I'm stumped. When I try to start it now, it dies immediatly and when I turn the key off, the check engine and battery lights stay on very dimmly. when I ground my loose wire (with the key off) they go out. :wtf: Please post anything that may help. I do have a Haynes manual but I can't make sense of where the wire goes.

Thanks!!!!
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Old May 2, 2004 | 07:01 PM
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what is the color (and stipe color if any) of this wire. I have the 85 shop manual.
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Old May 2, 2004 | 09:37 PM
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The wire is solid red. Almost seems like it was changed? It comes directly off of the left post (nearest to the firewall) and into the firewall through the hole behind and above the gas pedal.
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Old May 3, 2004 | 12:31 AM
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That sounds like my subaru when a hose from the intake wasn't hooked up properly to the engine. If you start it and give it a little gas, will it keep running?

I'm no mechanic, but this sounds like there is a sensor that is reading an off O2 reading, goes :wtf:, and then it stalls.
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Old May 3, 2004 | 06:04 AM
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no, I've double and triple checked all the vacum hoses. eveything seems fine. The only thing that I have found that seems to not be connected like it was before the engine swap is this wire. Also, I think its an electrical problem, because I occasionaly get a static discharge after I try to start it, like there is a bad ground. I have checked, cleaned, tightened and rechecked all the engine ground points...

I tried to connect the wire to a ground and start the motor, no fire at all. unground the wire, turn the key off, and then its back to the start and die thing.
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Old May 3, 2004 | 07:41 PM
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Still have not been able to solve this problem. Can someone look on their 22-re and see if their is a single wire that runs into the cab from the coil, from the same post as the black coil wire?? Perhaps I'm chasing the wrong thing... My 4runner is an '85. Any help will be greatly appreciated!!
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Old May 3, 2004 | 07:59 PM
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From: Portland, Oregon
Electrical diagram

NCA = no color available at time of print

Last edited by amusement; May 3, 2004 at 08:03 PM.
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Old May 4, 2004 | 06:04 AM
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Thankyou, amusment. I see from your diagram that the red wire that I have shows as a black-red wire. It is down in the bottom left corner of the page you posted. Unfortunatly it goes off the page! Does it go through the noise filter?
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Old May 4, 2004 | 08:33 AM
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From: Shandon, CA
From the wiring diagram in my 85 fsm. One wire goes from coil to distributor, one to igniter, via the ignition coil check terminal, and one back to its power supply, the 7.5A ignition fuse. I would suspect the last one. Check the fuse panel you may have an open circuit at the ignition. Hopefully you didn't pull the wire from the module, you just broke it so a simple splice should fix it.
By the way the only soild red wire in my diagram, of igniton system, is igniter to distributor, but you original post clearly states the coil.
HTH
Nathan
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Old May 4, 2004 | 03:22 PM
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From: Portland, Oregon
Originally Posted by FusciaRunner
... Does it go through the noise filter?
Yes, it does go to a noise filter. Here's the rest of the diagram

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Old May 4, 2004 | 07:11 PM
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Yes, I believe the wire is the one that returns to the fuse. I think that the wire has been replaced at some point? Most of the wiring has a metal crimp end (SAE Toyota?) and this has a more modern plastic sleeve type connector. Unfortunatly it seems that I pulled it out of the fuse block... So, I'm going to see what I can do. I'm still not sure how I hooked the wire, but I did all the removal and reinstallation by myself so I probably just missed seeing what I was doing. Hard to run the cherry picker and steer the motor out by yourself!

Thanks, eveyone has been great help. I appreciate all the responses. Hope to get the Runner going and see some of you from the NW next winter.
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Old Jan 7, 2007 | 01:22 PM
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From: Chillan, Chile
I have '86 4runner instrument panel trouble. I need where those wires go to. I have this panel in a minitruck cabcrew which didnt come with tach. But I have a lot of wires that I dont know where they go. Thanks.
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