getting aftermarket tacho to work on coil packs / ca18det

[DRiiFT_King]

hey, brought a cheap tacho today so hopefuly i can drive it this afternoon, the diagram has no writing on it and i dont even think the pictures are in english, so i was hopeing some one knows how to wire a tacho into a ca18det,
any help is good help,
cheers

[ninja_86]

go to the ecu, there is a tacho feed..........look up the ecu pin outs

[juzzo84]

ca18det- pin 7 on the ecu is the output signal for the tacho

[juzzo84]

there is probably 3 wires from the tacho
1- is tacho signal in (possibly green)
2-power to globe for lighting (possibly white)
3-earth (commonly black)