DTC P0451: EVAP System Pressure Sensor - Range/Performance: Condition

DTC is set when Engine Control Module (ECM) 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:

• ECM malfunction.
• FTP sensor malfunction.
• FTP sensor circuit malfunction.
• FTP sensor vent hole and pressure passage plugged.