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Throttle Position Sensor: Rio

  1. Turn ignition off. Measure resistance at component side between TP sensor connector terminals No. 2 (Blue/Green wire) and No. 3 (Blue/Orange wire). With throttle fully closed, resistance should be 1.6-2.4 k/ohms. As throttle is opened, resistance should smoothly increase linearly to 4.1-4.3 k/ohms at wide open throttle. If resistances are as specified, go to next step. If resistances are not as specified, replace TP sensor.
  2. Connect TP sensor connector. Turn ignition on. Backprobe and measure voltage between TP sensor connector terminals No. 1 (White/Green) and No. 3 (Blue/Orange wire). With throttle fully closed voltage should be .2-.8 volts. With throttle wide open, voltage should be 4.0-4.8 volts. If voltages are not as specified, replace TP sensor.
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