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Car runs fine. After it idles till operating temp and u shut it down...no fire. Changed main relay, same thing. Changed crank sensor and it seemed to fix it temporally. It fixed the start up after idle so i drove the car 3 blocks died...no fire. Next day fired up let it idle till warm and shut it off...no fire. Please help, car does have check engine light on.

 
Rep Power: 243

So we have not checked the code because...?

The car is trying to tell you something that might help. Listen to it, get it scanned.

 
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Check engine light is for an O2 sensor.