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Genuine Toyota Sienna Vapor Pressure Sensor
Fuel Vapor Pressure Sensor- Select Vehicle by Model
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3 Vapor Pressure Sensors found
Toyota Sienna Vapor Pressure Sensor Assembly
Part Number: 89461-0C010$279.66 MSRP: $401.02You Save: $121.36 (31%)Ships in 1-3 Business Days
Toyota Sienna Vapor Pressure Sensor
Part Number: 89461-48020$205.54 MSRP: $294.72You Save: $89.18 (31%)Ships in 1-3 Business Days
Toyota Sienna Vapor Pressure Sensor Assembly
Part Number: 89460-08020$208.44 MSRP: $298.89You Save: $90.45 (31%)Ships in 1-3 Business Days
Toyota Sienna Vapor Pressure Sensor
The Toyota Sienna Vapor Pressure Sensor is designed to protect the environment and ensure good engine performance by monitoring the change in pressure inside a sealed fuel system so that fuel vapors are contained and metered properly. Located on a line in close proximity to the fuel tank, this Toyota part transmits information in real time to the engine computer that will only stop the hydrocarbons from escaping and allow the correct mix of vapor to enter the cylinders when the Vapor Pressure Sensor confirms that the tank can hold a vacuum without leaks. This is done by closing the vent valve and opening the purge passage. The early Sienna models came with simple EVAP hardware that employed an analog Vapor Pressure Sensor, whereas later OBD-II generations of the Sienna got a canister vent solenoid and a more sensitive digital Vapor Pressure Sensor that runs automatic leak tests and flashes the check engine lamp when vacuum targets aren't hit. While the physical configuration of each Vapor Pressure Sensor changes from model year to model year, every unit utilizes a little three-wire connector that provides a five-volt reference, ground, and signal that increases or decreases according to tank pressure. Toyota troubleshooting is quick with a regular voltmeter.
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Toyota Sienna Vapor Pressure Sensor Parts Questions & Experts Answers
- Q: How to check and replace Vapor Canister and Vapor Pressure Sensor on Toyota Sienna?A:The fuel EVAP system is responsible for controlling the evaporation of the fuel and in particular, it collects the fumes and expels them to the car's intake manifold where they are introduced in the flow of air-fuel mixture. The charcoal canister was situated in the engine compartment if the vehicle was produced starting from 1998 and till 2000 or at the rear part of the vehicle behind the fuel tank if it was produced starting from 2001. The system employs a canister, which has activated charcoal, that has the function to absorb the vapors, while the other part that is the fuel filler cap has a two-way valve to vent the vapors in case of failure. When the ignition is off, fumes are directed through conduits to the canister and it retains them. When the engine is on and the temperature is attained, a vacuum switching valve or VSV is acted upon, which permits the vapors to be pulled into the intake manifold for combustion. A vapor pressure sensor measures pressure in the tank; opens a VSV when pressure rises to a given level. Hoses should be first checked whether there are problems with the disconnection or damages since they are among the major causes of problems. Some checkups to be done on the canister include leak and damage tests, depending on whether the car belongs to the 1998 to 2000 and 2001 and later models to guarantee functionality. The VSVs of the respective components must be checked for resistance and continuity and procedures on how to remove and install them. The voltage at the input of the vapor pressure sensor should be normally measured to maintain the specific voltage ranges depending on the type of the model. Any of these that fail the tests should be replaced and installations done in the reverse way to the removal.
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