Etravoda

I'm nearing the end of a 3.4 swap in my 4Runner and the progress has come to a hault. (I would like to get up a build thread when this is done and show the issue I had to other people so that can follow along). I have a 95 Auto 4Runner with a 97 Auto 4Runner for a donor engine and transmission. I've done all the wiring myself and made an adapter and it won't crank over. The cluster lights up, but when I try to start the ECM clicks and nothing happens.

I know people have had issues with the COR but I think I wired in all the wires it needs through the 3.0 body plugs.

I know the colors changed but maybe someone can answer my question. I have the Black 3.0 wire running into the PRE-Park/Neutral switch wire Black/Red on the 3.4 ECM. I also have the 3.0 Black/Yellow wire running to several things but I'm guessing thats the problem....

Can someone please explain where the Black/Yellow wire should be run? Do the Park/Neutral switches operate differently on 3.0/3.4? I can provide any EWDs from those years if someone can help with that.

Thanks

dntsdad

Don't know the wiring off the top of my head, but I would say that if your ECM is clicking, you have issues. It shouldn't click. There is no relay in there.

The cor is simply the fuel pump relay. That should click on when the key is on, and cranking if using the 3.4 relay. It will only turn on in the crank position, if using the 3.0 cor relay.

You ran your own wire to the starter solenoid right?

Might want to journey over,and post something, in the 3.4 swap forum here. More traffic of people that may know your answer on the NSS wiring.

waskillywabbit

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Etravoda

I ran a separate wire from the starter to the wire that comes off the bottom of the park/neutral switch.

I think I understand how the CORs are different from the two vehicles, thats why I also wired that Park/Neutral wire into the COR relay (As It is on the 3.0 EWD). I'll post up pictures later of my EWDs and hopefully show what I did wrong.

Thanks

Etravoda

Here are the locations I used for the same wire. I can get the 97 EWD when I get home if anyone wants to look at it. The wire that comes from the 3.4 P/N switch and needs to be spliced into for the starter, the COR, and also the STA on the ECM.

I'm developing tunnel-vision on this wiring and know that I have something wrong here... Do the P/N switches behave differently?