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Audi K-Jetronic ur-quattro MB and Audi 100/200 1B/MC-2 WGFV Indicator Lead

General

This is a simple lead for displaying wastegate frequency valve operation

• The WGFV is operated by the ECU to control boost during full load operation
• An LED flickers during operation provided the WoT switch has closed and the ECU is not in "limp home" mode
• Some situations put the MAC12 ECU into limp home mode without a code being stored in the ECU
• On occasions, the ECU will also store codes without illuminating the Check Engine light

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