Genuine 1995 Audi 90 Oxygen Sensor

1995 Audi 90 Oxygen Sensor Parts and Q&A

• Q: What features does the KE 111-Jetronic system have regarding fault memory and how can one check the oxygen sensor and other components on 1995 Audi 90?

  A: The Fuel injection and ignition fault memory of the KE 111-Jetronic system is included. To test the lambda control, test a multimeter on the differential pressure regulator. In the case of cold acceleration enrichment, a digital potentiometer is used. Check the cold start valve to make the spray pattern even. Special tests need to be done on throttle valve switches.