Can you use a '91 4x4-wheel drive engine wiring harness on a '91 2-wheel drive truck

I have a '91 standard toyota pickup cab, 2-wheel drive that needs its engine wiring harness replaced. I located a source that has a '91 toyota pickup 4x4 truck engine wiring harness. Would the '91 4x4 engine wiring harness work on the '91 2-wheel drive truck? The engine wiring harness needs to go from the airbox cleaner to the fuse box. Also, if anyone know a source to fine the engine wiring harness for my '91 2-wheel drive truck it would be much appreciated!

Thanks for any help!

 

Now if your talking engine harness it goes to the ECU in the cab.

More difference between a manual trans and automatic then 2wd and 4x4

Just what is wrong with yours??