Was driving my car the past coup less days completely fine. Check engine light was on it came on recently, and code was knock sensor, but causing no problems. I went out to eat parked the car and when. I was done started it up, hopped out and all my doors locked I couldn't get in. It eventually died after 20 minutes with half a tank of gas left. I hopped in after I got my keys a few minutes later when I found my extra set and it started, ran for 5 mine and died again. I started it up again, ran for a minute and died. The next time it would only crank and wouldn't want to start at all. I had 2 tunes set to it to flash e fine light fast for e85 and flash slow for 93 and when I held the pedal down to check tunes neither displayed. Help me I believe my car killed itself

 

Start with checking the ECU fuse. In fact try checking all fuses to be on the safe side.