Ok, well heres an update, my car is still studderimg, and I replaced one spark plug on the side i think its coming from, i cant get to the others. the spark plug had a brown ring on the outside of he ceramic part, im not sure what its from? I was thinking an exhaust leak is getting that spark plug hot, and ruining it. Because when i originally replaced it, it seemed to be running fine for a day.

 

ok ... that's good news though!
sort of ?
do you mean you changed one plug and it ran good for a day?
at least you found the cylinder.
now check the new plug you just put in again.
if it has a brown ring again already. usually that is a sign of leaking threw the plug.
be very careful not to overtighten the plug putting them in or even put pressure on the porcelin while threading if you need to use extensions with universals and hanger bearings to get at it.

 

ok i had the same problem . i had random misfires . so i changed the coils and the wires and the plugs . . but now the random misfires became a cylinder 6 misfire . so i checked the vacuum lines they were all cracked so i changed them . . . there is no leak . i think . .... but i still hear the misfire . .any other suggestions ??? my maf is good . my throttle sensor might b bad but i thought it im puzzled ... might it be the line connected to the fuel pump ?
oh . when i start my car . the ses light flashes . for like 10 seconds then it just stays on . .