https://www.youtube.com/watch?v=ro1HZPTa-Wc
https://www.youtube.com/watch?v=dgb5dyIW5cw
Running like crap, stutters terribly, and I'm just about done spending money on this car. P0300 tells me random/multiple cylinder misfire, and that's the only code I'm getting. Something to do with fuel pressure possible, since all 6 cylinders may be affected. Threw in new spark plugs and a couple coils, but didn't change much. I did throw in a bottle of Berryman B12 a while back, and that's when the misfires started (right after I left the gas station, but the misfire was not anywhere near as bad as right now). After I did the spark plugs, it was fine for a short while before coming back again. Ideas?
