Typical Malfunction Thresholds
P0451: CANISTER PRESSURE SENSOR STUCK MONITORING
| EVAP pressure change during reference pressure measurement | Less than 0.66 kPa (gauge) [0.096 psi (gauge)] |
P0451: CANISTER PRESSURE SENSOR NOISE MONITORING
| Frequency that EVAP pressure change is 0.3 kPa (gauge) [0.044 psi (gauge)] or higher | 10 times or more in 10 seconds |
P0452: CANISTER PRESSURE SENSOR RANGE CHECK (LOW VOLTAGE)
| EVAP system pressure sensor voltage [EVAP pressure] | Less than 0.45 V [Less than 42.11 kPa (abs) (6.11 psi (abs))] |
P0453: CANISTER PRESSURE SENSOR RANGE CHECK (HIGH VOLTAGE)
| EVAP system pressure sensor voltage [EVAP pressure] | Higher than 4.9 V [Higher than 123.761 kPa (abs) (17.95 psi (abs))] |