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Home >> Nissan-Datsun >> 1991 >> Sentra SE-R >> Repair and Diagnosis >> Engine Performance >> Engine Controls - Adjustments >> Adjustment >> Throttle Position Sensor/Idle Switch (V6 Engines) >> Maxima, Pathfinder & Pickup

Maxima, Pathfinder & Pickup

  1. Disconnect throttle position sensor. Connect ohmmeter between terminals "E" and "F". See Figure . Resistance should vary from approximately 1000 ohms with throttle valve closed to approximately 9000 ohms with throttle valve fully open. If resistance is not as indicated, replace TPS.
  2. To check idle switch, start engine and warm to normal operating temperature. On Pathfinder and Pickup, disconnect Auxiliary Air Control (AAC) valve sub-harness connector. On Maxima, turn diagnostic mode selector screw on ECU fully clockwise.
  3. On all models, disconnect idle switch. Connect ohmmeter between terminals "C" and "B" on Maxima and between "A" and "B" on Pathfinder and Pickup. See Figure . Check idle switch off/on speed, while closing throttle valve.
  4. Idle switch should turn on at 800-1100 RPM. If idle switch does not perform as indicated, loosen idle switch hold-down screws and rotate switch body to set off/on speed to specification.
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