Hi I have what was a 306d phase one, it had a clock in it next to speedo instead of tacho, anyway it now has a td engine and my speedo packed up so I got a replacemnt from a scrappy, the replacement has a tacho, but inside my car there isnt a plug for it. I know there is a sensor on the flywheel and its is connected to the loom, so I am guessing its just the internal loom. A freind looked at the back of his s16 with tacho and that has a blue plug (the one I'm missing) and it only has one wire going to it. I have been told that the tacho works of a pulse signal? Does anyone know if this is true and if it is, how can I locate a pulse signal on the internal loom to connect it up?
Thanks
Richie
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