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P0450 Diagnostic Trouble Code Discussion for September 2010

EVAP System Pressure Sensor Circuit Malfunction

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Trouble Ticket Help Requests for DTC P0450
Help Request Posted
2005 Cadillac CTS 2.8L MIL Lamp on VIN: 1G6DM56T85
P0450: fuel tank pressure sensor. Thanks to anyone who can help. I have this 05 cts with a p0453 fuel tank pressure sensor high volts code. I have completely load tested all the wires in the circuit with a headlight and all are good. Checked from the pcm to the fuel tank pressure sensor plug ...
September 07, 2010