I cant figure my gt out. Its an 00 and it has this bad misfire. It wont do it when its cold for the first say 15 minutes but then it startes to pop and sputter when i get on it. Sometimes if i take off from a light i can hear it go pop pop pop too. I have had NO codes tho. Anything besides coils it could be? Its got new motorcraft plugs filters i cleaned the MAF. Not sure what else to do the cop boots looks fine, no cracks or rust anywhere. Not sure where else to go from here. NEw tps and iac as well.