DTC P0450 - EVAP System, Pressure Sensor Malfunction: Condition

DTC is set when input voltage from fuel tank pressure sensor is less than .2 volts or greater than 4.8 volts during the first 7 seconds of engine operation with engine coolant temperature less than 176 °F (80 °C). Possible causes are:

• Fuel tank pressure sensor malfunction.
• Open or short circuit between terminal "C" on purge solenoid valve and terminal No. 3I on Powertrain Control Module (PCM).
• Open or short circuit between terminal "B" on purge solenoid valve and terminal No. 3K on Powertrain Control Module (PCM).
• Open circuit between terminal "A" on purge solenoid valve and terminal No. 4E on Powertrain Control Module (PCM).