Right, as above really. I need to know what the input into the rev counter is on my fiesta 2.0 zetec (mk3)si. I have an idea for a rev counter accessorie but dont know if the input it a pulse, i.e 6k per min pulses at 6krpm, or like 6v for 6k rpm, or if its done on resistance or what. if someone could enlighten me, and give me a few rough numbers that would be awsome.

cheers