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Throttle Position Sensor (TPS)

Throttle position sensor should input a .5-volt reference signal to PCM at closed throttle and approximately 4.5-volt signal at full throttle. Voltage should change smoothly as throttle valve is opened and closed. If voltage is not correct, check throttle position sensor wiring circuit. See WIRING DIAGRAMS  . Individual component testing of throttle position sensor is not available from manufacturer.

NOTE: If problem in throttle position sensor exists, throttle position sensor may set Fault Code No. 3 in PCM. See RETRIEVING CODES  under SELF-DIAGNOSTIC SYSTEM
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