I have a 2007 Jeep Wrangler. Swapped with a 2008 Grand Cherokee 6.1 SRT8 Hemi. and NGC4 PCM with an HP Tuner ( currently 55k miles)
( Found this out from HP's past threads from Kent3372)
Issue is multiple miss fires.
It has recently been professionally tuned.. more than once. New Ox Sensors..More than once. New plugs.. more than once. New coil packs. New Throttle body..
All in past 9 months.
After the throttle body it ran as desired. for weeks....until this past weekend... it was raining for a couple of days.
I believe its a moisture issue...as it always seemed to act up in high humidly or rain.
I'm not a mechanic.. so these were all done by other professionals or a dealer.

Any ideas for my next step.?? Its getting frustrating.

Wayne