[MyLilTitan]

I've searched many posts and found various similar problems but none like mine.

Car was working fine just until recently i've been having to jump my car's battery quite often for some reason. But that is no longer the problem. Now after i jump the battery the car would start but it'll idles up and down as if trying to stay running but it will eventually dies after 5-10 seconds.

After doing that for about 3 times, now it won't even fire up. It'll crank and turns but will not stay running. There is spark, fuel pump works, MAF sensor is clean, no code thrown...so now i'm stump. At this point my only guess is something electrical or maybe the security system?

i just notice that when i step out of the car, and locks the door, the blinking "key" light would stay solid in the car and than flashes after 10 seconds but remain flashing for quite sometime. Does this indicate that it still thinks there's a key inside? Is this light suppose to stay on this long?

thanks in advance