DTC P0451: Evaporative Emission System Pressure Sensor/Switch Range/Performance
WARNING: This page is about a different variant/trim than selected.
P0451 - EVAPORATIVE EMISSION SYSTEM PRESSURE SENSOR/SWITCH RANGE/PERFORMANCE
| For Vehicles With NVLD Module | |||
| Description: | This DTC sets if the natural vacuum leak detection (NVLD) module pressure switch does not respond to pressure changes in the EVAP system. | ||
| Possible Causes: |
|
||
| Diagnostic Aids: | |||
| For All Others | |||
| Description: | This DTC sets for a fuel tank pressure (FTP) sensor range (offset) concern. The FTP sensor output is offset by greater than 1.7 inches of water or less than -1.7 inches of water. | ||
| Possible Causes: |
|
||
| Diagnostic Aids: | With the FTP sensor at atmospheric pressure, the FTP PID normally indicates 0 inches of water. | ||
| Application | Key On Engine Off | Key On Engine Running | Continuous Memory |
| Fiesta | GO to PINPOINT TEST HZ . | ||
| All others | GO to PINPOINT TEST HX . | ||