Sputtering on 98 gtp with no engine light code

[feonnixxx]

I have a 98 GP GTP and every time the boost kicks in the supercharger sputters and decreases power. I am having to keep performance shift on in order to give myself enough power to pass someone. when its cold (i live in mn) it seems to run just fine but as soon as the engine slightly warms up it starts sputtering. it doesnt matter what gear im in but in high gear when the super kicks in at low rpm's it starts to really affect my power, it starts jumpin a little bit. the messed up thing is the check engine light doesnt come on even if i pound on the gas (trying to cause a light to come on) anybody know what might be causing this?

[JLAudioEclipse]

Get access to a scanner or hook up with someone in your area to scan each individual cylinder for misfires. I bet you come to find that you have a weak coil, cut plug wire, or a plug that is over gapped/cracked/fouled. Hope this helps

Ryan C

[redgrandprix77]

did you find out what it is cause I have the same issue with my 1999 gtp.

[feonnixxx]

i just did a tune up (new wires and plugs) and found that one of my wires had been chewed on by a squirrel or something. once i did that the sputtering went away. I was having issues with my MAF sensor as well which was just a corroded wire, rewired a new connector on there and works GREAT