OK, so im swapping motors from a 350 TPI to a 355 carbed, i got rid of everything not needed and all i want lef tis the heat, nothing else, motor tranny adn heat.

Ok so i heard that the drivers harness has all the inportant stuff you need to run your lights gauges and what not, and that the pasenger harness from the ECM is useless with the carb, but i found that there is 3 more connections seperate from the ECM that go into the dash sumwhere and some wires go into the ecm and some straing into the rngine compartment, ....i annoyed to all hell with this, i ripped it all out, and it was all going good and i was removing the ac the injectors adn emissions wiring, but then i realized my tranny wiring i unhooked is also on the passenger wiring harness and that a few other not as important ones are on the ecm harness.

Now, what the hell do i do, i think thats the spedo connection, so that can be fixed.

and what are all those relays that he ecm harness plugs into at the end, i took all of that out, so i dont think my fuel pump will run, so how do i hot wire it ,

so tell me, did i **** up beyond repair or what, ....jus tell me what ti tis....

 

The speedo in 87 was mechanical so you are OK there. The wires to the trans are for the trans torque converter lock. The fuel pump relay can be wired to go on and off with the key, most other relays are for emission related things. What are you going to do about the 50-60 psi fuel pressure? You can purchase kits to modify the trans so you get converter lockup. Run without lock and the life of the trans will be short. You will need at least a manual for the wiring.

 

Not having converter lock up wont hurt you trans at all. If you read up on the lockup function you can actually hard wire it to a manuel switch to help fuel milage on the highway.

 

ok, phew, i though i ****ed up beyond repair,

Ok, no emmisions, no fuel injection, no ac, just motor tranny and heat, thats all i want so what relays can get rid off and which ones i cant....

So, its for the torgue converter lockup, how do i fix that, with a kit or with some fancy wiring, or do i just get a stall converter...what to do.

Now the fuel pump, which relay is the one for the pump and how do i wire it up so it goes on with the key, and dont worry i already have a holley fuel pressure regulator, i just have to get a gauge for it thats all.

and im sure glad that the speedo will work. Thats all i needed is sumthing else to go wrong with this swap.

Now, i ripped out the ecm and all the connections and wires to it, so its all out of the car, i did some research and found out that i dont need any of it to run a carb, or do i, any help would be appreciated, cuz im really gonna rip into this car this weekend, so i need all the heads up i can get,

 

Yeah, if i need anything else from this damn harness, tell me now, b4 i go crazy over here, and ....

thanx...

alex

 

Wrong. The TCC CAN be manually wired but at highway or at any constant speed over 35 mph it will lock up anyway. TC lock keeps the fluid cooler, read Kens article at www.technicalevolution.com as he gives a good explaination and advice on the 700R-4. You fuel pump relay will be in front of the driver firewall, it will be with a set of 3 relays, the fuel pump relay should be the different looking one square as opposed to the mass air flow relays. Look for the dark green/white wire from the socket and tie it to a 12volt line that goes on and off with the key. That should energize the pump. The only reason I mentioned pressure is you have to make sure the regulator will handle peak pressure of almost 70psi, some have a max rating. Good luck with the project.

 

ok, so it locks up after 35, good. But what if i get like a 2800 stall convereter, then it will be all good right, since its a differ converter, or is there more involved to it....

Ok, about this fuel pump, so i plug it back into the realay and i just use one wire, the green white one, all the other ones i can get rid off, cut off right af they exit the plug that goes into the relay for a clean look and that should get the pump runnin hopefully.

Im thinkin of what wire to run it to so its gets power once the key goes on, any ideas, sumwhere under the dash column, so its close so i dont have to run crazy wires everywhere, teh less the better.


But thats all i need to do, i dont need anything else from the damn harness.

by the way, thanx man, u helped a lot man, a lot...

 

Any switched ignition power wire should be ok, probably could find a spot on the fuse block. What are you doing about the fans? I know that atleast one of the fan wires (the green/white one) is connected to the ecm harness. I cut that wire and ran a wire from that to a switch to switch ground and have it turn the fans on.

 

no prob about the fans, i changed them a while ago to a sinngle flip ****ch controled fan, so im good with that.

So ill just plug that intot the fuze block and i should be ***, ok, just to make sure, i just need that single wire right, no other wires form teh rellay connector.

thanx...alex