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P0452 Diagnostic Trouble Code Discussion for January 2007

Fuel Tank Pressure Sensor Circuit Low Voltage

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Trouble Ticket Help Requests for DTC P0452
Help Request Posted
1998 Chevrolet C1500 Suburban LS 5.7L MIL Lamp on VIN: 1GNEC16R1W
P0452: Fuel Tank Pressure Sensor Circuit Low Voltage. Came in with P0452 and P0453. Tank pressure sensor low & high inputs emissions failure. No driveability issue. Checked sensor at harness next to tank. I have ground and 5v ref. but 0v from signal wire. This explains P0452. What has me puzzled is if I clear...
January 05, 2007