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P0452 Diagnostic Trouble Code Discussion for July 2009

Fuel Tank Pressure Sensor Circuit Low Voltage


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Trouble Ticket Help Requests for DTC P0452
Help Request Posted
2006 Other GM WORKHORSE 6.0L MIL Lamp on VIN: 5B4JPD2UX6
P0452: evap pressure sensor signal low/ short. The fuel level sensor fault comes back each ignition cycle. The scanner is reading 4.9 volts. When you back probe the sense wire at the sending unit it reads .7v also if you back probe at the computer it reads .7v The evap pressure reads 1.4v back probing at t...
July 21, 2009
2006 Other GM WORKHORSE 6.0L MIL Lamp on VIN: 5B4JPD2UX6
P0452: evap pressure sensor signal low/ short. The fuel level sensor fault comes back each ignition cycle. The scanner is reading 4.9 volts. When you back probe the sense wire at the sending unit it reads .7v also if you back probe at the computer it reads .7v The evap pressure reads 1.4v back probing at t...
July 21, 2009