Tacoma 4WD L4-2.7L (3RZ-FE) (2004)
Throttle Position Sensor: Testing and Inspection
ON-VEHICLE INSPECTION
1. INSPECT THROTTLE BODY
a. Check that the throttle linkage moves smoothly.
b. Check the vacuum at each port.
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Start the engine.
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Check the vacuum with your finger.
2. INSPECT THROTTLE POSITION SENSOR
a. Disconnect the sensor connector.
b. Apply vacuum to the throttle opener.