Tach wire for remote start

[prerunner84]

I'm having a remote start installed on my 100 but can't seem to get the tach wire to work or maybe have the wrong wire? Does and one have the wire diagram they out share or any help? thanks

 

[ogsuv]

Been a few years but I worked in a shop where we installed 100's of remote starts per season. Anytime we couldn't get a tach wire to work we grabbed an injector wire and worked most of the time. Just use a meter to find out which one varies voltage with rpm's