what is wrong with my 2003 jeep?

April

New member
I have already changed out all the spark plugs, fuel injectors, coil pack, crank sensor, oil change, fuel system cleaner, and fuel filter. It will not start on the first try sometimes it takes 4 to 5 times before starting. when going over 45 it acts like it looses pressure and misfires. Please help.
 
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