P0452 GMC – Fuel Tank Pressure Sensor Circuit Low Voltage

 

P0452: DIY Repairing Video Tutorial

https://youtu.be/KzoZ5DSiZVo

Check out nonda Auto DIY Center for more engine error code repairing videos.
https://www.youtube.com/playlist?list=PL-Lyko0O0oxHe1AGvzwAz-wokJPXAtW97

 

P0452 GMC Possible Symptoms

  Engine Light ON (or Service Engine Soon Warning Light)  

P0452 GMC Possible Causes

  Faulty Fuel Tank Pressure Sensor,Fuel Tank Pressure Sensor harness is open or shorted,Fuel Tank Pressure Sensor circuit poor electrical connection,Fuel Tank Filler Tube  

P0452 GMC Description

  The fuel tank pressure sensor responds to changes in fuel tank pressure. Vacuum is consider negative pressure. The information supplied by the fuel tank pressure sensor to the Engine Control Module (ECM) is used in order to detect vacuum decay or an excessive vacuum during the EVAP diagnostic routine. The fuel tank pressure sensor signal voltage to VCM varies from a minimum of about 0.1 volts with pressure in the fuel tnk to greater than 4.0 volts with high vacuum in fuel tank.