Throttle Position (TP) Sensor
- Turn ignition off. Ensure throttle linkage moves smoothly. Ensure throttle lever is adjusted properly. See
THROTTLE BODY LEVER ADJUSTMENT in ON-VEHICLE ADJUSTMENTS article. Disconnect electrical connector from Throttle Position (TP) sensor on throttle body. Disconnect vacuum hose from throttle body. See Fig 1. Connect a vacuum pump to disconnected vacuum hose and apply vacuum.
- Using ohmmeter, check resistance between specified terminals in relation to throttle position. With throttle fully closed, resistance between terminals VTA and E2 should be 200-6300 ohms. See Fig 1. With throttle fully open, resistance between terminals VAT and E2 should be 2000-10,200 ohms. Resistance between terminals VC and E2 should be 2500-5900 ohms. If resistance is not as specified, replace TP sensor.
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