Truck starts and dies

Hey guys. So the other day I changed my after to a duralast gold 27f. And I swapped my spark plugs to denso.
I have also been doing some electrical work here and there since the battery and plugs. I've noticed every time I unplug my battery (for 5 mins to a few hours) and plug it back up, my first start always dies after about 2-4 seconds of being on... but only the initial start after I plugged the battery back up. Every start after is fine. Is something wrong?

 

That's normal when you've disconnected the battery. You can apply a little gas to keep it on or just let it die and start again then let it idle so the computer can do its magic.

 

What he said ^^^^^^^