How do you adjust the lean exhaust mixture on a 1993 Buick Century76? Code 44

Asked by GuruVWG6X Aug 11, 2018 at 01:52 PM about the 1993 Buick Century Custom Sedan FWD

Question type: Maintenance & Repair

As stated Above.  The engine is a 3400

1 Answer

You may need a new O2 sensor but a vacuum leak or exhaust leak could also set this code.

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