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P1629 Diagnostic Trouble Code Discussion for June 2004

Theft Deterrent Signal Not Received

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Trouble Ticket Help Requests for DTC P1629
Help Request Posted
1998 Chevrolet Cavalier LS 2.4L Cuts out, Stall, THEFT SYSTEM VIN: 3G1JF52T4W
P1629: Theft Deterrent Fuel Enable Signal Not Received. HELP. I went for a test drive with customer and when going down the road at any speed it just drops out and sometimes the theft light comes on. I thought it must be primary, wrong turns out it is turning the injectors off. I then pulled codes ipc had a Z21(sna...
June 21, 2004