Previa Van LE 4WD L4-2438cc 2.4L DOHC SC MFI (1997)
Throttle Body: Testing and Inspection
On-Vehicle Inspection
THROTTLE BODY ON-VEHICLE INSPECTION
1. Inspect throttle body.
(a) Check that the throttle linkage moves smoothly.
Vacuum Port Identification
Reference Chart
(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 throttle position sensor connector.
(b) Disconnect the vacuum hose from the throttle opener.
(c) Apply vacuum to the throttle opener.
(d) Insert a feeler gauge between the throttle stop screw and stop lever.
