I have a 01 5.3l DBW with a z06 cam. Motor has been running fine except for recently it decided it would like to die at random times. Once it does this it will crank over and not restart. I tried many combinations of tricks and things to try and get it to start again but it seems like walking away for about 15 minutes does the trick. I tried to take my boy to school the other day and as I was turning left across an intersection in morning traffic it dies in the middle of the intersection.
I tried cleaning the air filter, MAF, Throttle Body, 02 Sensors, and checked all of my fuses and electrical connections to make sure they were making contact. I tried to get a log of it happening tonight.....lol I got about half a block from the house before it died and would not restart for about 15 minutes. I did find that if I pump the pedal in a fit of anger that it helps it fire up. I don't know how that works. but it makes me think that when I push the pedal it must open the throttle blades some and allow it to get more air to fire off. Maybe I have the air set to low in the tune somewhere. im still new to tuning and have my tune set up to tune the ve table I think. I will attach the tune and the config file if anyone wants to take a look. It died at about 1:15 or so in the log and the config is Default Imperial.
MAF disabled tune for tuning.hptDied on decel.hpl