tach question

[goj_cloud]

ive been having a tach problem ever since i had my sr IT is a 91 Tach and it still doesnt work. i just used a volt meter to check the volts of my tach since it doesnt work, and it read like 0.03 is that right?

i also heard of a msd tach adapter i heard this can make your tach work, what does it do?

were does the yellow/red signal wire lead to from the ecu

thanks for your help this has been bugging me for months



Modified by goj_cloud at 6:42 PM 3/13/2007
Modified by goj_cloud at 8:12 PM 3/17/2007

[Blown240sx]

ive been having a tach problem ever since i had my sr IT is a 91 Tach and it still doesnt work. i just used a volt meter to check the volts of my tach since it doesnt work, and it read like 0.03 is that right?

i also heard of a msd tach adapter i heard this can make your tach work, what does it do?

when i had my alt checked at autozone they put some kind of magnetic device on the - battery cable that was able to read the rpms, is there any way i can get my tach signal from the - cable?

thanks for your help this has been bugging me for months

Modified by goj_cloud at 7:39 PM 3/12/2007

Check to see if the internal harness was wired correctly. Sounds to me you just have a bad connection at the in cabin plug (aka F3 plug).

[goj_cloud]

what do you mean by internal harness and f3 plug could you elaborate please

[Blown240sx]

the white plug that runs to the gauge cluster and plugs in right beside the main harness plug (ECU plug)

[goj_cloud]

what should the voltage be for the tach signal wire?

[2_Liter_Turbo]

This is the best that I could find:

[goj_cloud]

update i figured out were the tach signal; goes it goes to some kind of a connector that isnt hooked up to anything it just has like some kinda cap on them, i looked at mine and mine had no cap on it here is what im talking about.

here is from another nico member that helped me

what are these