I installed a Kia auto start on my wife's 06 sportage, and it works fine except when temps are 10* and below. At the cold temps, it starts, and seems to be running fine, but will only run for about 5 min, and then dies, or shuts off. It does seem to overfuel when cold, but starts 99.9% of the time when air temp is 10* and below, and never has died when starting with the key. Any ideas on where to start?

 

This has been an ongoing problem for about a year now, and have run fuel from different stations, but always 87, so I assume its not the fuel. Its fires right up, and seems to run fine, but typically only runs for 5-10 mins and then shuts off, but does run longer on occasion. If the air temp is 10* or above, no problems.

 

This is actually a Kia brand remote start, and it does have a timer (15 min), and will shut off if you step on the brake without turning the key to run. When the issue is there, it may run for 2, 5, 10 min, but never makes it to 15. There is a tech line, but it hasn't been much help, so my wife has decided to have a local shop install an aftermarket remote start, with a lifetime warranty (not super happy about this..... but if the remote start doesn't work she wants her spot in the garage back for the winter =)