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Throttle Position (TP) Sensor

  1. Disconnect TP sensor connector. Check resistance between TP sensor connector (component side) terminals No. 2 and 3 for Lancer and No. 1 and 4 for all other models. Resistance should be 2000-4000 ohms (Lancer) or 3500-6500 ohms (all other models). If resistance is not as specified, replace TP sensor. If resistance is as specified, go to next step.
  2. While slowly opening throttle valve, check resistance between TP sensor connector terminals No. 3 and 4 (Diamante), No. 2 and 4 (Mirage), No. 1 and 2 (Lancer) or No. 1 and 3 (all other models). Resistance should change smoothly in proportion to opening angle of throttle valve. If resistance is not as specified, replace TP sensor. For TP sensor adjustment procedures, see appropriate TP SENSOR ADJUSTMENT under THROTTLE POSITION (TP) SENSOR & ACCELERATOR PEDAL POSITION SENSORS in ON-VEHICLE ADJUSTMENTS article.
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