Check Engine Light: P0411


Labarr15
08-15-2010, 11:25 AM
Hi, I have a 2006 Chevy Cobalt LS Sedan (http://chevroletforum.com/forum/showthread.php?t=35182#).

I am getting this P0411 message.. I have had the Secondary Air injection check valve ( taking of another cobalt ) AND pump replaced and they light is still on displaying the same message even after i reset the computer.. What are your thoughts?
thanks
labarr15

maxwedge
08-15-2010, 02:28 PM
Can we assume the fuse is not bad? If ok a bi-directional scanner can command the system on to check its operation, rusted pipes if any, cracked /pinched hoses, stuck check valve, can all cause this.

Labarr15
08-15-2010, 07:19 PM
Can we assume the fuse is not bad? If ok a bi-directional scanner can command the system on to check its operation, rusted pipes if any, cracked /pinched hoses, stuck check valve, can all cause this.
Ok thanks for the help. Ill check all these things and reply with anything I find.. This has a been a reall pain in the ass..

Labarr15
08-16-2010, 03:09 PM
what fuse should i be looking for?

Labarr15
08-17-2010, 10:03 AM
ok i found the fuse, and guess what.... IT was blown!!! So i switched it out(40) and now iam waiting for the light to go offf.. hopefully!!

pato2424
01-15-2011, 01:07 AM
i am having the same issue, any new sugestions what could be?:rolleyes:

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