Hi. I Have a 2008 chevy cobalt an the check engine light just came on. I went to advanced auto parts to have them diagnose it. the employee said it was a "smog filter" . I admittedly know very little about cars an thought I should check here to ask what people think of this diagnoses an is it a real threat to my vehicle

45

Asked by Mar 01, 2014 at 10:11 AM about the 2008 Chevrolet Cobalt LS Coupe FWD

Question type: Maintenance & Repair

already diagnosed. don't know if it's true or not  an what  the extent of severity is.

4 Answers

122,535

What was the actual code number that they pulled? This number will allow us to double check their diagnoses.

3 people found this helpful.
45

P0411 secondary air injection system / Incorrect flow detected

1 people found this helpful.
122,535

http://www.obd-codes.com/p0411 --- check this out for possible causes and solutions. Hope this helps

5 people found this helpful.
45

thank you very much for the info.i appreciate your time

2 people found this helpful.

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