2004 Bravada computer signal to throttle or fuel pump on 2004 Oldsmobile Bravada

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No idiot light came on, first time it has happened. I had turned the car off and then tried to turn it back on suddenly. Is it like a computer where the info gets confused and has to be shut down to reboot?
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it will crank but sounds like it isn't getting gas. then won't start . like the computer tells it not to start

well, you need 3 things to run. spark, fuel and compression.
you need to find out what is missing. my guess is the fuel pump has failed as it is a very common failure.