I drove around my neighborhood for 5-10 minutes before going out to the main road to get a log. Everything felt fine as I was driving casually. As soon as I went to grab a log, I got up to about 17 psi then boost took a nose dive and I got the following codes: - 29CC - DME: Combustion misfires, several cylinders. - 29CE - DME: Combustion misfires, cylinder 2. - 29CF - DME: Combustion misfires, cylinder 3.