Hi everyone i'm kinda new to the forum and so excuse me if this is a repost. But I own a black 1997 m3 E36 and there have been a couple of problems.
First off the Check Engine light has been on for the past couple of weeks. I went to auto zone to check up since they have a free check thing. They told me there were 3 problems. P0442, which reads that there is a small leak in the evaporative emission control system (AKA the gas cap being loose too) P1250, which reads a PRC Solenoid Circuit Malfunction. And P0306, which reads that there is a misfire in cylinder 6. At first this game me no problems, but eventually this has caused a number of problems. I seem to have noticed that there has been a slight studder at 3-4000 RPMs. The engine seems to sputter and lag for a split second before getting into the high revs. I went to my local BMW dealership and just went up there to ask what I should do and he said try changing the spark plugs. And they recommended Bosch platinum +2. So we went to autozone once again and bought the spark plugs and installed. The car ran the same and so we are left with this. I just would like some help on what to do here
Here are the symtoms.
1.The car studders around 3-4000 RPMs every time, every gear.
2. After driving the car fast, the studdering appears to happen throughout all the RPMs.
3. After turning off the car, and waiting about 5 seconds or so the car seems to go back to normal and drive like its brand new.