92 Sc 300 Shut Off When Warm Mostly

[chedder91]

it started bout week ago when went I was leaving work it start hesitate like it want to cut of which it did I thought it was a fuel pump problem because I could spray it with quick start it would start but shut down rite away sometimes I will run in till it warms up but I notice when it wont start the check engine light will not come on but if I leave the key in the on position it will sometimes come on and run for a while and when I try to link my scanner to DLC2 which is the one in the cab it wont link to it but the DLC1 works but I doesn't give me code