Well since this big engine build i havent had a tacho in the dash cluster working. It should be as its all wired back to the Haltech ECU but its not. Im starting to think it might be the cluster.. Does anyone know of a way to test the Tacho in the cluster to make sure it is working..?

All The Breast
Jason

I've got a couple spares if you want to chuck one in to try it out?

Put 5v through the corresponding signal wire. I'm still yet to wire my haltech up to the dash - it's been over 3yrs lol