Contents Wiring diagrams Section: Testing & Diagnostics All sections

P0451 (2) Scion xB I

Related DTCsP0451: Evaporative emission control system pressure sensor range/performance
Required Sensors/Components (Main)Vapor pressure sensor
Required Sensors/Components (Related)Mass Air Flow (MAF) meter and Engine Coolant Temperature (ECT) sensor
Frequency of OperationOnce per driving cycle
DurationSignal fluctuation (noise) monitoring: 15 seconds No signal change (stuck) monitoring: 20 minutes
MIL Operation2 driving cycles
Sequence of OperationNone

MONITOR STRATEGY