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Throttle Position Sensor

NOTE: Throttle Position (TP) sensor is non-adjustable. Use the following procedure to check TP sensor calibration. For complete testing of TP sensor and wiring circuit, see the TESTS W/CODES - 2.4L article.
  1. Remove components for access to electrical connector at TP sensor, mounted on throttle body. With electrical connector installed on TP sensor, turn ignition on with engine off. DO NOT start engine.
  2. Using digital volt-ohmmeter, measure voltage at center terminal on electrical connector for TP sensor with throttle valve closed (idle position). Voltage should be within specification. See THROTTLE POSITION SENSOR VOLTAGE SPECIFICATIONS table.
  3. Slowly open throttle to full throttle and note voltage reading. Voltage should smoothly increase to specification. See THROTTLE POSITION SENSOR VOLTAGE SPECIFICATIONS table. Replace TP sensor if voltage is not within specification.
THROTTLE POSITION SENSOR VOLTAGE SPECIFICATIONS (1)

Throttle Opening (2) Volts
At Idle Greater Than .40
At Full Throttle Less Than 3.8
(1) Measure voltage at center terminal on throttle position sensor with ignition on.
(2) Voltage should increase smoothly when moving throttle from idle to full throttle.
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