My 2010 hybrid had po300 po303, po304 113,000 miles on it first real problem with car. Replaced all spark plugs inspected all coils and injectors. No visible issues. Swapped coils from 3 and 4 to cylinders 1 and 2. Swapped injectors the same way. Still have po 300, po303 po304. Egr valve is not stuck its insane how hard it is to get egr off the car with the electric motor right there in the way. So I took top off egr and the valve moved easily so it's not stuck open or closed. Cleaned the maf as well. I don't see a shreader valve to check fuel pressure anywhere. Bbut would like to test fuel pressure although I would think it would affect all the cylinders.
