...there are some possibilities...have to check one by one...but first u have MUT diagnosis at the Proton Centre..to confirm all the sensors (i.e TBS,TPS,ITS...etc) still functioning well...and from here you narrow down actual faulty...
usually its the throttle body...or yr timing too low...save fuel but no power & engine dies off easily....go get the workshop to check using pdt2000 or mutII
do you guys know how to increase the range of ur stock proton alrm....I've read somewhere but can't remember...it can be done by extending one wire from the alarm....can anyone confirm this?? anyone knows how...??