corolla 2009

hi all

i installed  autostart  gs 1775 in  toyota corolla 2009  every thing was working perfact  but after a3 weeks the costomer came back and he said  when its cold the car keep crancking  but no start with the remote starter but after the car running with the key about 5 to 10 minuits  and it works with the remote starter i mean when the engin hot the car works with remote starter and when the engin cold it dosnt start with the remote  keep cranking and shuts off it start only with the key i  used vertual tech  for this car it could be that  the problem . any help please