My 2000 ZR2 is acting up. I hope someone can help, I was going to town a few days ago and it started missing, i checked the gauges and seen the tac was bouncing, it finally just stop working (tac) but the vech started running without missing i looked at the tac a few min later and the tac was working. The vech only miss when the tac is bouncing. Any ideas as to what is wrong?

 

Sounds like maybe your distributor is going up. I had the same symptoms and replacing the distributor fixed it.

 

Thanks, that will be next thing i will try