I just installed a 1986 7mgte engine on a 1989 supra body. I made all the electrical connections required, but for some reason there is no fuel pressure and electrical current flowing to the dristributor when attempting to start the car. Could it be that the elctrical wiring in the 1989 supra is different from the one in the engine. Also could it be that im still using the 1986 ECU instead of the 1989 that had to come with the car?

what color are the plugs on the chassis of the car. (yellow or gray?)

what color are the plugs on the ECU side of the engine harness. (yellow or gray?)

quote:

Originally posted by shaeff:
what color are the plugs on the chassis of the car. (yellow or gray?)

what color are the plugs on the ECU side of the engine harness. (yellow or gray?)

VERY NICE!

Thanks, Brett. I've been down that road before.

Yea me too...twice!

the plugs on the chassis are gray
the plugs on the ECU side of the engine are yellow.

There's your problem. You need to get an engine harness that matches the year of the chassis of the car.

Whoa, distributor??? Was the car a GE to begin with and you're using the GE's harness?

Im using the 86 harness with the 86 ECU. the chassis of the car is a 1989. I dont have the 1989 ECU but im using all the wiring of the the 1986 is there a huge diffrence between the two?

This message has been edited. Last edited by: sprmcy,

The engine is a GTE the chassis had a GTE on it when i made the swap. what could be wrong I'm still not getting any spark at the coils.

This message has been edited. Last edited by: sprmcy,

You need to use the Engine harness that matches the year of your chassis.

I'll try that. Where can i get the Engine Harness. The car is a 1989 GTE

sprmcy- did you get my PM?

Check ebay, and supramania.com's forsale section for a harness. If the plugs on the chassis are gray, you'll need an ECU, AND wiring harness with gray plugs.

Check your PM...