my 2000 saturn ls1 reads po452

Question

have checked fuses,relays,and fuel system

Answer 1

Hi there

This code points to an issue with the fuel tank pressure sensor. If the pressure in the tank doesn't change, then there may be an evap leak in the system. If it does, then the sensor is bad and will need to be replaced.

P0452 SATURN - Fuel Tank Pressure Sensor Circuit Low Voltage

Read more: https://www.autocodes.com/p0452_saturn.html