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Home › Jeep › 1991 › Cherokee Limited › Repair and Diagnosis › Engine Performance › Engine Controls - Adjustments › Throttle Position Sensor (TPS) › Procedure › Cherokee, Comanche & Wrangler

Cherokee, Comanche & Wrangler

  1. Turn ignition on. Check TPS output voltage at center terminal. With throttle closed, voltage should be .20-1.5 volts.
  2. Slowly open throttle. Voltage should gradually increase to 4.1-4.8 volts at wide open throttle. If not, make sure 5-volt input and ground circuits between TPS and engine controller are okay. If TPS output voltages are not as described, replace TPS. TPS is not adjustable.
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