Those who's Waja running with Mitsubishi 4G18P engine, please get ur car's throttle body cleaned & serviced. Then, check whether the RPM sensor located near the crank pulley at the engine block whether it's working perfectly or not.

This is the main cause where the engine will died off during 1st cold morning start. Previously my fiancee's Waja encountered this problem & sent to my uncle (my regular mechanic) to check what's wrong with it & found out that the RPM sensor "kong". Replaced it with the same identical from Pajero iO from chop shops since both uses the same engine.

Brand new RPM sensor is about RM 550 whereas if u r getting from chop shops, it's roughly around RM 75+ depending on the condition.

selinix, u r most welcome buddy! Just trying to share some useful info with all Waja owners here.