Originally Posted by mberndt

Hey man,

I had a similiar problem... I have a turbo kit, so I thought maybe something with the ECU tuning was making the tach jump...

After I had replaced Coil, wires, plugs, rotor, cap, swapped in a working Dizzy, and I still had the same problem...

You need to check all of the grounds in your car, not just the connections at, near, or in the Dizzy.

My prob was a loose engine ground near the tranny ground point... It was loose and created a 2 month headache...

Start the car and have someone look under the open hood, (at night) to see any kind of sparking... that's how we found my problem...

Good luck!