Genuine 1995 Audi 90 Idle Control Valve

1995 Audi 90 Idle Control Valve Parts and Q&A

• Q: How do the Idle Control Valve and Throttle Position Sensor function in relation to engine speed and air conditioning on 1995 Audi 90?

  A: Two-way valve I raises idle when low; valve II activates with A/C. Test the airflow meter plate, cold start valve and thermotime switch, cold acceleration enrichment, diaphragm pressure switch, throttle valve switch, auxiliary air valve, and warm-up valve. Basic throttle setting is factory-set; adjust only if disturbed, and verify idle.