This is your theft derent system and it's shutting the fuel off to your engine. Here's a discription of the code.
DTC P1629
CIRCUIT DESCRIPTION
The theft deterrent control module sends the fuel continue password to the engine control module (ECM) via the serial data circuit. The ECM verifies the fuel continue password received matches the password stored in memory. If the fuel continue password is correct, the ECM enables the starting and fuel delivery systems.
For some reason, the computer isn't receiving the correct code. You'll have to take your car in to a dealership to find out why.
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Sunday, February 28th, 2010 AT 11:00 PM