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Home >> Nissan-Datsun >> 1994 >> Sentra SE-R, Standard >> Repair and Diagnosis >> Engine Performance >> Remove, Overhaul & Install >> Engine Controls - Remove/Install/Overhaul >> Fuel System >> Oxygen (O2) Sensor >> Removal & Installation
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Removal & Installation

  1. The O2 sensor is mounted in exhaust pipe, below exhaust header. O2 sensor is equipped with a permanent pigtail which must be protected from damage when removing sensor.
  2. Sensor may be difficult to remove when engine temperature is less than 120°F (49°C). Ensure sensor is free of contaminants; avoid using cleaning solvents of any type. Always use anti-seize compound on threads before installing. Tighten sensor to 30 ft. lbs. (41 N.m).