Yes, I have read the other misfire posts but still have not resolved the problem.
Codes:
P0300 (Random misfire)
P05A1 (Active Grille Air Shutter A Position Sensor Min/Max Stop Performance)
Problems:
Cyl 2 & 4 Misfires
Misfire counts after 10 min hard driving:
Cyl 1 = 5 - 10
Cyl 2 = 30 -...