toyota Workshop Repair Guides

Toyota Workshop Service and Repair Manuals

Fuel Delivery and Air Induction > < Evaporative Vapor Pressure Sensor|Testing and Inspection
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b. Disconnect the vacuum hose from the vapor pressure sensor.
c. Connect a voltmeter to terminals PTNK and E2 of the ECM, and measure the output voltage under the following connectors:

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Apply vacuum (2.0 kPa, 15 mmHg, 0.59 in.Hg) to the vapor pressure sensor.

Voltage:  1.3 - 2.1 V 

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Release the vacuum from the vapor pressure sensor.

Voltage:  3.0 - 3.6 V 

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Apply pressure (1.5 kPa, 15 gf/sq.cm, 0.22 psi) to the vapor pressure sensor.

Voltage:  4.2 - 4.8 V 

d. Disconnect the vacuum hose to the vapor pressure sensor.

Fuel Delivery and Air Induction > < Evaporative Vapor Pressure Sensor|Testing and Inspection