Tacoma Extra Cab 2WD V6-3.4L (5VZ-FE) (1998)
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Throttle Body: Testing and Inspection
On-Vehicle Inspection
ON-VEHICLE INSPECTION
1. INSPECT THROTTLE BODY
(a) Check that the throttle linkage moves smoothly.
Vacuum Port Identification
Reference
(b) w/EGR:
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) Apply vacuum to the throttle opener.
(b) Disconnect the sensor connector.
