my tach doesnt work after putting in a brand new dizzy. chck all of the voltage and it is all good. do you think the tach just went bad or something else. and also does anyone know how to fix a bouncing speedometer
this is in a 90 DA
already searched couldn't find anything

thanks

 

try looking here G2Ic.com for your bouncing speedometer. Your tach might be a sensor.

 

I'm guessing the new dizzy has some issues. It's too much of a coincidence that you replaced it and the tach stops working. On the speedo, the DA's had a mechanical speedo with a cable that ran from the back of the gauge cluster to the speed sensor. You either have a brake in the cable or the sensor is having issues. Try removing the cable from the speed sensor and attaching it to the chuck of an electric drill and spinning it to see if the speedo is working correctly. If so you may have an issue in the sensor, if not, you may have a brake in the speedo cable somwhere.

 

alright thanks for the info