My car has been misfiring for a couple weeks. We pulled the codes & it suggested we change the ignition coils & spark plugs for those cylinders. We’ve replaced all coils & spark plugs now as well as various censors. The oil & filter has been changed. Radiator has been flushed. Nothing has helped. I can’t get into the mechanic for 2 weeks and we don’t have another car. What else could it be??