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P1626 Diagnostic Trouble Code Discussion for September 2012

Theft Deterrent System Fuel Enable Circuit Malfunction

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Trouble Ticket Help Requests for DTC P1626
Help Request Posted
2006 Chevrolet Silverado 1500 HD LT 6.0L No Start, Stall VIN: 1GCGC13U86
P1626: Theft Deterrent Fuel Enable Signal Lost. ... it started to mis then died while driving. I found the Maf and Mis code, checked fuel pressure 55psi, spark is good, injectors have pulse. Fuel volume is good, filled a gallon jug halfway in just a few seconds. I got it to run with some throttle cleaner, a...
September 20, 2012