05 cts bad misfire HELP!!!

[05caddy]

I have a 05 cts 3.6l and it has a bad misfire in cylinder 6 it started only when accelerating you could feel it missing so i decided to change the plugs .....and get the fuel system flushed.....so after i put the new plugs on i figured i would be good to go...but ever since than its been worse it does it at idle and under accelration.....i have a scanner and its still only on cylinder 6 i tried swapping the coil to make sure it wasnt a bad coil and it still does it .....im not sure what else to check or if anyone else has had this problem any help would be appreciated thank you

[danielsatur]

After swapping cop 6, did you retset & clear code?

I would roll injector #6 next!

[05caddy]

yes...after i swapped coils i reset and cleared all codes and hooked the scanner back up i misfired as soon as i reved the engine past 1500rpm

[free07110]

check your oil, low oil causes misfires due to the variablevalve time

[azakram]

Did you fix the problem?