immobilizer on 2000 Chevrolet 2500 Pickup

My chev just stopped when driving and I have failed to start it again after that. Can it be the fuses, immobilizer or something else? I have a year 2003 chev.

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1 answer
I don't think the immobilizer will cause a problem while driving, just when starting. I would check the fuel pressure, these fuel pumps have been problematic.