QUOTE(cipsmor @ Feb 20 2012, 07:28 PM)
Btw, can heavy rain cause this also... It happened during heavy rain last night.

my experience driving in heavy rain:
heavy rain can make ur check engine light turn on while driving..
but remember, it will only happened if u already relocated the O2 sensor downside that water may kena at it..
i think its not about the rain.. happened at higher rpm rite? seems like either ur sparkplug/cableplug/coil
i think better check the sparkplug, cableplug, coil.. seems it can be related.. still new car rite? if those parts already been check, last resort go to PSC and PDT.. tell them the jerking problem only at high certain rpm..
i just can help that.. maybe others got any better idea?