B2600 NOT RUNNING NEED HELP!!!!!

Thanks for the info, I will check the sensors and see what happens.

I just pulled off a fuel line and turned the key on, I don't have anyway to check fuel pressure. This pickup did sit for a while, the previous owner replaced everything not me, I'm not sure what all was done to it.

I got the ECM pulled, I didn't see anything that looked out of the ordinary???

Thanks again for the help