Buick Century P Codes (Powertrain) P0400 - P0499 P0404

Browse Buick Century P Codes (Powertrain) P0400 - P0499 P0404 questions and answers. Choose a question that matches your symptoms.

1 discussion

EGR Test Result Explanation, Code P0404

2002 BUICK CENTURY
Performed All Egr Tests. Still Getting P0404. Same Test Results On Three Different Units-2 Used, 1 Brand New. Results As Follows,(no...
3 ANSWERS
3 IMAGES
Asked by rjw92458

Browse other repair topics

Browse by repair topic
P0401P0404P0410P0420P0440P0446P0455

    Can’t find your issue?

    Ask a new Buick Century question