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P0452 Diagnostic Trouble Code Discussion for September 2008

Fuel Tank Pressure Sensor Circuit Low Voltage

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Trouble Ticket Help Requests for DTC P0452
Help Request Posted
2002 Buick LeSabre Custom 3.8L Poor Idle Quality, Misfire, Poor Fuel Economy, MIL Lamp on VIN: 1G4HP54K92
P0452: Fuel Tank Pressure Sensor Circuit Low Voltage. Greetings. This 2002 Lesabre has a miss in it. Along with the miss is a rattle noise. Have checked spark plug(and tried new one with no luck), checked fuel pressure which is ok, checked injector flow--ok, checked for vacuum leaks(twice) and none found. Ohmed s...
September 24, 2008