Hi All,
I now have my car running thanks in part to all the exceptional help I got from this newsgroup.
When I parked my car 14 years ago the factory tach worked flawlessly. It ran off of the points style distributor and coil. I now have an HEI system and the tach is inoperative. Is there a way to diagnose why it isn't working? Does anyone know about what type of signal the tach saw from the original ignition system?
I have access to an oscilloscope and a bit of electrical engineering background. I'm sure that if the problem is signal related that I could build a signal transformer circuit. I just don't know what the original signal looked like. Can anyone help?