Ok, can anyone help me out. My car no longer has an ecu as removed by a previous owner, I am trying to get all the gauges working including the rpm gauge. My question is this, is it possible to get the rpm gauge working without the ecu in the system? The current engine is a 5L and has a rpm sensor built into the pump. Can I wire that sensor into the ecu connector left under the dash and have the rpm gauge work or does the ecu change the signal to something that the rpm gauge understands. I don't know this and would love if someone could enlighten me on this topic. On another note, I have pieced together the pinouts for the plug in the engine bay that was a mystery to me for so long. Mostly gearbox sensors and some engine sensors but hours of confused study of a Japanese wiring diagram may have payed off, only time will tell.
Does anyone have info on the wires that go into the fuse/relay block in the engine bay as that has also been cut out by the previous owner and I am having to repair this also