i did change my spark plugs,wires cap and rotor, set the right ignition timing i did all that before i did the fuel injection flush and changing the fuel filter,the only thing i did the really worked was doing the injection flush and fuel filter,the car runs perfect it doesn't stutter and jerk for at least 4 days and now it's coming back again.and before i didi the flush and fuel filter i already got it diagnose the mechanic coudn't find anything wrong he can't get any code on the ecu, anyways theres no CEL but he tried to get information to the ecu but there's no reading. so i just decided to change the fuel filter and do the injection flush coz it might help and it did, i thought it was already fixed and i was all happy but not after 4 days when it start acting up again.could it be bad injectors? fuel delivery? fuel pump? i have no idea,please help coz i'm runnin out of cash, the worst thing is i went 4 different shops already and none of them can pin point the problem, i might go to the dealer next time but not right now coz i'm broke,and by the way the idle is still okay for now anyways. please help thanks?