Tacoma PreRunner Reg Cab 2WD L4-2.7L (3RZ-FE) (1999)
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Vapor Pressure Sensor: Description and Operation
CIRCUIT DESCRIPTION
The vapor pressure sensor and VSV for vapor pressure sensor are used to detect abnormalities in the evaporative emission control system.
The ECM decides whether there is an abnormality in the evaporative emission control system based on the vapor pressure sensor signal.
DTC P0450 or P0451 is recorded by the ECM when the vapor pressure sensor malfunction.
