Hi,

Does anybody have a picture of how their wires are connected on their ignition coil and ballast resistor. I think mine might be connected wrong, the engine runs but the tachometer does not work. Any help would be appreciated. 

Nick

 

Edited January 9, 20187 yr by footballnick17

Must be a 72 thing - 

 

There are only a couple of wires involved. The Green/White (GW) wire comes from Start position on the key, goes through the tachometer, and comes out Black/White (BW). That BW wire goes to the positive of the coil. There is another BW wire. It comes off the ignition switch and goes out to the ballast resistor (and also branches off to the fuse box). On the other side of the ballast resistor is a GW wire that connects to the GW wire described above.

Has the tach ever worked in the car since you owned it?

I have only had the car for about a year now, I have never seen the tach work since I just got the engine running. How could I see if the tach itself is bad?


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Well, you could see if someone jumpered out the connection on the back of the tach. If it's jumpered out, it was probably because it was bad.

I will check that out when I work on the Z again, thanks for your help!


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