The engine wiring harness and ecu are easy to install in another vehicle when performing this swap but the real challenge comes about when its time to take care of that last 45 this is where ors conversion harness comes in our conversion harness is designed to provide that last 45 of the 22r e fuel injection wiring circuit. Looking for a simple wiring diagram for a 22re in a 85 bought a none running truck and guy said he replaced the harness due to the po wiring in a stereo to th3e fuel pump and just making a mess of things he replaced the harness and the truck has not been started since. 1986 toyota 22rte re efi wiring diagram 3 wire colors b black br brown g green gr gray l light blue lg light green o orange p pink r red. 1986 toyota pickup injector wire harness crimp corrosion fix apparently this is a common issue if you want to see more info on it check out my thread on yotatech. I would also suggest you keep track of what you have done in case there are any problems your can use a diagram from any 85 88 22r e setup the only difference may be in the diagnostic check connector wiring if you dont want to mess with this we manufacture a harness that replaces the body harness with only the efi circuit
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