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Home >> Audi >> 1992 >> 80 Base, 2.3 D, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 1 (Engine Controls - Basic Testing) >> Fuel System (2.8L V6) >> Fuel Control (2.8L) >> Oxygen (O2) Sensor Control (2.8L)

Oxygen (O2) Sensor Control (2.8L)

WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 1993 Audi 90, 1993 Audi 100, 1992 Audi 100, 1991 Audi 90, and 1991 Audi 80. However, it is still accessible from the selected car via links, so may be relevant.
  1. Disconnect oxygen sensor connector. See COMPONENT LOCATIONS  . Measure resistance between engine ground and oxygen sensor connector terminal (component side of connector). If resistance is not infinite, replace oxygen sensor.
  2. If resistance is infinite, set voltmeter on 2 volt DC scale. Turn ignition on. Measure voltage between engine ground and oxygen sensor connector terminal (component side of connector). If 350-450 millivolts are present, oxygen sensor is okay. If 350-450 millivolts are not present, check wiring. If wiring is okay, replace ECU.
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