My 2003 Nissan Sentra will crank but not start

What is your question?

My 03 Nissan sentra gxe will crank but not start. When I put the obd scanner on it, it shows that it linked to the car but will not retrieve any codes. I'm beginning to believe that I have an ecm issue. Any advice is greatly appreciated.

How long has your 2003 Nissan Sentra had this problem?

Been without car for 2 months