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Home >> Volkswagen >> 1992 >> Passat CL, 2.0 C, Standard >> Repair and Diagnosis >> Engine Performance >> Engine Controls - Adjustments >> Idle Speed & Mixture >> Notes

Idle Speed & Mixture: Notes

NOTE: Mixture adjustment is NOT a part of normal tune-up procedure and should not be performed unless mixture control unit is replaced or vehicle fails emissions testing.
NOTE: Ensure fuel system pressure is correct before attempting idle speed or mixture adjustment.