i have a 87 truck and want to use all the stuff out of a 88 4 runner. I know i can cut and redo harness's, but can i just take out whole cab and engine harness's and swap with efi harness's...Like fuse block and all....and just plug in play from there.. I rather have it more stock like for sellin reasons or if anything happens down the road with wiring. Will the fuse block work out of a 4runner with tailights and stuff from truck??

that way all sensors plug in right and ecu and such

 

plug and play ... everything is exactly the same between the two ..... the EFI will have some extra wires and harness 8 I believe ..

 

Taking the whole harness would probably be easier. The EFI system has lots of wires.