hey i own a xr6t that is currently missing and not idling right, i have replaced both spark plugs and coil packs. i first replaced the spark plugs because it didnt seem to idle smooth and i was having a problem in third gear when doing around 140kph where it would stuggle and it back fired once. once the spark plugs got done it was running sweet untill the other day when it started missing and running between 5 and 6 cylinders it also blows smoke. i replaced the coil packs and that didint seem to make a difference. was just wondering if any1 has had the same problem or has any advice as what it could be

i had a similar problem with my ba MKII xr6.
i let the full get down very low (had like 3kms left till empty) and it must of sucked up all the crap from the bottom of the tank and had blocked up my fuel filter.

i just bought some "fuel system cleaner" from my local servo and that sorted it out.
and then i replaced the filter a week after.
havnt had a problem since

ba dont have leads dude... they are coil pn plug..