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Home >> Audi >> 1991 >> 100 Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - System/Component Tests >> Engine Sensors & Switches 2.2L >> Knock Sensor
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Knock Sensor

If engine knocking is present, knock sensor will produce voltage of about 50-70 millivolts. Check fuel quality, compression pressure, knock sensor and wiring circuits if knocking exists. No other tests are available from manufacturer.

NOTE: Testing information for other 2.2L sensors or switches are not available from manufacturer.