So I just finished my grounding kit. Cranked the car and threw a service engine light. I drove it down the road and the car was acting erratic, bucking and such. I checked all locations and they appear to be solid.

Of course I went neg to fender, neg to tranny, tranny to head, head to intake, intake to firewall and firewall to pass fender.

Any ideas what could be the issue?

For people that are going to tell me to search, I did a quick search but its late and I want to figure this out ASAP

 

Problem fixed! One of my connections was somewhat loose. Now I can watch football!