Dodgy rev counter
 

Would a faulty ignition amplifier cause the rev counter to behave iradically :wall:
Its jumping all over the shop and sometimes doesn't work :wall:

what car is it on?

probably more a case of the rev counter being wanked. I owned a car that the rev counter wouldnt work for about half an hour or so, short drives it never worked. :cry:

another car i had the rev counter lied, it would read differently when it had first started working, compared to after a while. had me confused for a while until i figured that one out :?

Its a sapphire cossie 4x4 :top:

well the rev counter only has 3 connections, 12v, earth, and a connection to the coil negative.

It works sort of, so theres 12v and earth there, and im presuming the car runs fine so it wouldnt sending a flase signal to the rev counter.

u could check the continuity of the wires, check they arent giving eratic readings or something.

Im almost willing to bet my jam tart on it :top:

I'll try that cheers :top:

let me know how u get on ;)

I've got the same problem aswell, funny that.

I'll take your advice safe and give it a go.

Cheers :top:

you got a series 2 yeah. Theyre REALLY BAD IN THEM. One car i had the rev counter LIED for the first few minutes of running, and another one i had was dead until about half an hour of driving then it would come to life :?

cant see it being a lot else in an Escort Turbo