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

DTC is set when Power Control Module (PCM) detects fuel tank pressure is less than -5.3 kPa or more than 5.3 kPa for 5 seconds. MIL is illuminated when PCM detects malfunction during 2 consecutive drive cycles. Possible causes are:

• Fuel Tank Pressure (FTP) sensor malfunction.
• PCM malfunction.