2007 Chevy Cobalt had p0411 errors, then died and won't start.

Asked by rpfeiffer0 Mar 08, 2015 at 07:26 PM about the 2007 Chevrolet Cobalt LS Sedan FWD

Question type: Maintenance & Repair

I replaced the air pump  It then died one day and won't start. It cranks but won't run. I replaced the Air pump and air pump check valve due to error code and having read/heard it could totally fail and cause the car to not die and not start.Still won't start. I'm aware that it could be the fuel pump and/or filter as well as getting spark. I ran out of time to properly check those. I'm really wondering if there is something additional to do after replacing the air pump and check valve? Computer reset? Some other unique thing to do?

1 Answer
335

nonolabs answered 9 years ago

Check the hoses that were disconnected accidentally while replacing the part. The car also needs to have the codes cleared so that you can check out the next code on the list. The secondary air pump is for smog emissions and is not necessary for the car to run.

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