audi Workshop Repair Guides

Audi Workshop Service and Repair Manuals

By Symptom > < Fuel Pressure Release|Service and Repair
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Idle Speed: Customer Interest
Engine Performance - Improved Idle Quality

25-90-T01 Feb 90
CIS-Notronic - Electronic Control Unit - Improved Idle Quality

Condition:

Signal from airflow housing potentiometer causes motronic engine control system to momentarily svitch into the system limp
home mode. Fault code of 2232 is obtained through vehicle self diagnostics.

Production:

Improved software in CIS-Motronic ECU (Yellow Dot)

As of:

Production Date May 1989

VIN:

89_KA249425

Service:

Refer to Product Circular Group 25 Number 89-05 on diagnosis repair of idle speed fluctuation (with engine warm).

80/90 M.Y. 1989 2.0L 4 Cyl. Engines Only

By Symptom > < Fuel Pressure Release|Service and Repair