[jerryls]

i started a new post only because the title of the old was misleading. The car ran great then one day stalled after leaving my house only a block away and would not start but started the next day but runs terrible. I now get a P0300 and CEL is on. Car only has 70K miles. I checked the fuel pressure and it's about 60 lbs with ignition on and when running about the same. I disconnected the MAF connector and no change. What should I check next- Could it be a spark problem?