Chevrolet Repair Questions? Ask a Chevy Mechanic for Answers ASAP
hi there, I am Cam. Sorry to hear about this. Wha happens if you unplug the 6 pin connector on the top of the fuel injection pump? Its hard to get at as its under the upper intake.
Perhaps a theft issue.
have you tried a theft relearn?
The theft system is built into it from the factory. To relearn it, do the following. Try to start the vehicle, when it stalls leave the key alone for 10 minutes until the security light stops flashing. Turn the key off for 30 seconds, repeat that process two more times for a total of 30 minutes and then see if it starts. If not, but it's entirely possible your injection pump was fail internally.
Did you replace the PMD after this started?
Yes. Start stall is one of the most common failures I have seen with the PMD.
Try a PMD. That's the only way to tell.