Component Inspection
P0451 Evaporative Emission System-Pressure Sensor Range / Performance
Inspection/Repair - Component Inspection
Component Inspection
1. Ignition "ON" & Engine "OFF".
2. Measure voltage between signal terminal of the sensor harness connector and chassis ground (Do not disconnect FTPS harness connector)
Specification :Voltage increases proportionally with decreasing pressure (Approx. 0.5 V to 4.5 V)
3. Is voltage within the specification?