I’m using a 2nd generation Toyota Matrix and I’ve been having a long start issue. The engine takes extra time to crank before starting, especially after the car has been parked for some time. I already changed the fuel pump, but the problem is still there. Another issue is that the car jerks/jacks while driving sometimes. Please, what could be causing this problem, and what should I check next? Could it be related to fuel pressure, injectors, spark plugs, ignition coils, sensor issues, or something else?