Any thing ever get figured out with this. I have the same exact issue I am useing the 8594 os wellactually the 52528594 os and the truck wont remote start it will fire my lift pump and the securitey light on the dash comes on but thats it. wont even atttemp to start. Works and runs fine useing the key. And with my other ecm and 7103 os my remote start works fine.