Engine wiring harness question

[bman602]

Hey guys, quick question. I have a 1985 auto Toyota pick that I did an engine swap on with a 1990 22re. Used the intake, tb, and injectors from the 85 to work with the original ecu and harness. Switching over to a 1990 5 speed standard from the guy I bought the engine from. He's doing a swap to a v8, so his harness and ecu are available. Mine is in kinda crappy shape, so I was wondering if it would be straightforward to use the newer harness on the truck (using the 90's tb, intake, injectors, etc...). Any input is appreciated.

 

[Dirtpoor]

Swapping the harness is pretty straight forward as not much changed other than harness plugs and body panels. I have done it, a while ago, but I don't recall any real headaches. By switching to the newer harness, it will be easier to hook up your diagnostic tool, as the 85's have a bastard plug. One thing to consider when switching W56 transmissions is the gear ratio in overdrive. The W56-D has a higher overdrive than the A or B and I'd have to check but I think the C is the same as the A or B.