Two months ago changed plugs and coils. After change CE came on. Checked code, was for MAP sensor. Drove it about 5 miles, restarted, light was off code gone. Fast forward to two days ago. Ran errands all day, no issues. Parked car, went to leave 2 hours later, rough idle, would barely run, CE on. Checked code, misfire on 4. Swapped 1 and 4 same issue. Changed plugs. Old ones looked fouled out. Started, still running rough. Now have misfire on 1 and 4, plus MAP code. It's definitely running very rich. I'm at a loss as to where to look next.