DTC P0451: EVAP Circuit, Pressure Sensor Range/Performance Problem: Condition

DTC is set when Power Control Module (PCM) detects Fuel Tank Pressure (FTP) sensor output voltage is out of range with engine running. MIL is illuminated when PCM detects malfunction during 2 consecutive drive cycles. Possible causes are:

• FTP sensor vent hole and pressure passage plugged.
• FTP sensor malfunction.
• PCM malfunction.