this is driving me nuts.....

[ciera87]

I have a 1987 ciera cruiser originaly the car had a 2.8 and i swap that for a 1990 3.3 i pulled out the 3.3 with tranny and the wiring harness with the ecu too ok , i got the dash wiring harness from a 1991 3.3 with the speedo everything fit perfect even the steering colunm but i dont have power at all, my question is should i get the engine wiring harness from the 1991 3.3? Because i have no horn no lights no nothing, where did i go wrong? It does'nt even crank, what can i do to make this work? Oh did i mention that the harness of the 1990 3.3 somebody jump with speaker wires the fan to start the car i had to put the ignition switch on and started that had to the starter, please give and idea of how i could solve this. A guy even told that i have to change the sender unit, meaning that i would have to start all this work from back to front, i thank you for trying to help me in this project. Thank's

[maxwedge]

Start with the basics do you have power to the distribution box under the hood that powers up ign and accessories?

[ciera87]

hey max, i went and got the ecu and the whole wiring harness from the same 1991 ciera 3.3 and still have the same problem i have power going to the relays but that's about it, no lights,no horn no power at all going to the fuse box i was thinking about running a positive to the switch or maybe to the main in the fuse box, any other ideas? thanks.

[maxwedge]

Get a wiring diagram at autozone.com, repair guides and track the main feed circuits.