Hello Jack, the antitheft system is active and it acts that way because the computer shuts the fuel injectors off. There may be a fault or the antitheft system may just need to be resynchronized to the key. Follow this procedure exactly concentrating on the time intervals and see if that allows things to return to normal. Let me know what happens.
Your JA Expert,
PASSLOCK REPROGRAMMING AUTO LEARN IMPORTANT: Due to component variability, the vehicle theft deterrent (VTD) system must have the learn procedure performed regardless, if the vehicle starts on the first ignition cycle after a VTD repair. You must perform a theft relearn procedure if any of the following components have been replaced:
AUTO LEARN Time required, approximately 10 minutes:
You are very welcome Jack, have a great night. Print that out and place it in the glove box if it ever happens again.