The last time I drove my 280Z, the tacho worked, but last week I was cleaning the intake, then covered the car for a few days of rain and now the tacho quit working!

I thought maybe I broke a connection or something. Does the sensor wire go from the coil to the tacho, thought the firewall by the battery? I was trying to trace the wire, but it's not easy with the covering. :hurt:

BTW, where's the ballast resistor on a 78 280Z (F.I.)?

thx

If you ever find out what the problem was, let us know as I have the same problem in the 77.

My guess has been a dry joint or similar in the tach itself as a broken wire to the tacho would dis-able the ignition circuit.

I've lived without a tach for 3 years now, so I can wait a little longer...

MOM

I was going to agree with you straight away, but then I remembered that on the 78, there is a sensor on the speedo, not the tacho, that goes into the computer.

But I think your idea is a good one; worth looking into.

thx