tach gauge cluster

[brianallmotor]

i installed a gauge cluster today that has a tach on it. it has an additional pin that the connector slides onto- and the connector does have that "extra" wire on it. my problem is that the tach doesn't work. the spedo and lights work perfect.

could it be i need a new distributor??

[mechanicaldj]

please read this:

http://www.fordfestiva.com/forum/viewtopic.php?t=3590

then ask your question again

[brianallmotor]

i installed a gauge cluster today that has a tach on it. (tachfrom an auto 91 festiva) my problem is that the tach doesn't work. the spedo and lights work perfect.

could it be i need a new distributor?? (that is where the camshaft position sensor is- which i think the ECM uses to get information??)
or where is the sensor that collects RPM data?

i got a 1993 ford festiva. original b3 with 228k miles on it.

[25Horseplay]

It should be plug and play. Do you know if the tach worked before you put it in? I have done this same swap on my 93 and their was no extra wiring involved

[brianallmotor]

i do not know if the tach worked when it was in the parts car. does anyknow know a way to test it? should i try 5volts-7volts on some contacts maybe?

[25Horseplay]

If worse case I have a spare tach motor from a dash I took apart for the circuit board I could sell you real cheap.

[brianallmotor]

i'm headed to the u-pull it junk yard tomorrow. gonna see if i can find me another gauge cluster. hopefully that will work.

[slomoe]

tach

Brian, I just installed an after market tach in my 93. I found the tach sense connector that comes off the coil. I think it was a green wire with a yellow stripe. But I don't think my after market tach is accurate, RPMs too low. Mike

[25Horseplay]

Re: tach

Brian, I just installed an after market tach in my 93. I found the tach sense connector that comes off the coil. I think it was a green wire with a yellow stripe. But I don't think my after market tach is accurate, RPMs too low. Mike

Is it set for a 4 cy? Check that to see if its correct.