Okay, so recently i had some codes including an p0300 random cylinder misfire. I ordered MSD wires and ngk plugs since my car was in need of them anyway. I also had a MSD coil around so i put that on the car. I reconnected the battery and took the car for a drive and it drove much better, and was barely stuttering at all. And i drove for a while and the ses light never came back on. So im happy.

Then i go to BP and put in ultimate along with a thing of injector cleaner. Then it starts to stutter again as soon as i was leaving. Whats the deal! I drove for over an hour before that and had no problem, I fill it up and bang, problems.

So, that makes me wonder if i have a fuel issue instead of spark. Ill be putting on a fuel filter since it needs one. What could the problem be. Im not the best at diagnosing stuff so any help is greatly appreciated.

Thanks for the help,
Mike

 

Bad gas! heh