BadNews5

lately ive been having a problem with my tach jumping around. i had this motor in my ek when if first started doing it thought maybe the distributor was going out but thats not it traded the shell for a teg shell and put the swap in my teg and changed to a distributor that i know is good and its still doing it. im not sure of any other reason that the tach would be doing that only thing i know that makes it jump like that is the distributor.

other things i could think of are ecu or maybe a bad ground which i will check both tomorrow

anyone ever had this problem before? or have a clue what it could be?

thanks in advance

Dude

Check wiring first, then VSS.

BadNews5

i didnt think that the vss would have anything to do with the tach and my speedo works fine

radiaki11

all the things you just listed are what i would check, only thing i can add is the solid blue thick wire on your dizzy plug is you tach signal wire . also th vss has ZERO to do with the tach signal

BadNews5

ok ill check that wire tomorrow gonna mess with all the stuff didnt have the time to do it today

BadNews5

ttt

radiaki11

did you trace the tach output wire to make sure there were no shorts ? do u have a spare cluster u can put in to test to see if the cluster its self isnt shorting out internally

BadNews5

yeah i traced the wire all the way through and there was nothing wrong with it i just got a cluster from a friend tonight to try and see if that works ill keep you updated