It has happened again.
This is 2 times this year in 2 different GP's that I have experienced all sorts of problems with stalling, no starts, missing, loss of power, boost gauge showing full boost when barely touching the gas pedal, etc. I was checking all sorts of parts on the car and replaced a fuel pressure regulator, and removed and cleaned all kinds of parts.
But even though I was aware of the fact that the Mass Airflow Sensor could be bad, and was told to check the MAF, in my stupidity, I still did not swap the MAF out. I figured there was no check engine light on.
Well, to make a long story short, I installed a good MAF into a GTP that was running very poorly and stalled and would not start. As I went to start the car on the 2nd try, it fired right up and has been running almost perfect. The bad MAF was in the car when I bought it, and I would have saved myself lots of stress and loss time if I would have replaced it on the 1st day I got it home.

So, learn from my mistake that if you are experiencing any issues with starting, idling, missing, or whatever, make sure there is a full functioning MAF sensor in place. The CEL will not alert you to a MAF sensor going bad.