rapaulino29

Hello Forum Members, I am a new member and I need help with my wife RX-300 2002. The car has 251K miles and It is starting to fail on her. The engine light came on and the scanner read the following codes: P0300 - Multiple Cylinders Misfired Bank 1, Bank 3, Bank 5, and Bank 6 How serious is this? I understand that working on bank 1, 3, and 5 is very difficult. Help! Thanks in advance, Raphael