imho, you would be better off buying another wiring harness for it. and this should probably be in general tech or someplace other than the build threads.
i believe on these engines is possible to do away with some off the vac lines but i dont think you would be able to do away with wiring, prob be a whole lot easier to get a whole harness out of a junkyard truck and just redo everything
i know how to fix the yota 3.0 problems...take the whole engine out and scrap it haha just messing, good luck find the problem i know engine electrics can be a major pain
You cant do away with very much electrical on a fuel injected engine. Everything will effect the signals going into the computer and the signals coming from the computer to the injectors.