I think I jinxed the engine builders this season. I mention that no one ever seems to blow an engine anymore and now they've had more blown engines in two races than I recall seeing in entire seasons for the last few years.
It makes me wonder if it's because a few teams haven't quite gotten the fuel curve totally figured out for the new fuel injection system and they're blowing motors because they're unintentionally running the motors too lean.
Tony Stewart and his pit crew taking forever to restart the car due to his unfamiliarity with how to reset the new ECU box for the fuel injection was an interesting twist. I bet there's a lot of drivers and crew getting "refresher" courses on how to reset the ECU this week.
It reminds me of my first encounter with a fuel injected car. I was just finishing college and travelling for job interviews and I ended up with a fuel injected car for the rental car. Since I'd never driven a fuel injected car before, I did the same thing I always did to prime carburated cars, if it's cold, push the pedal all the way to the floor let off about halfway and hit the ignition, if it's warm, just push the pedal halfway down and hit the ignition. I finally had to resort to reading the owner's manual to figure out why the car refused to start.