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Error code P0411

Discussion in 'General Chevy & GM Tech Questions' started by pj08tb, Mar 7, 2010.

  1. pj08tb

    pj08tb New Member

    Hi , I am new to the forum and am in need of information about error code P0411 "Secondary air injector system incorrect flow." . Can I resolve this myself , what part do I need and where is this located on my truck? Thank you for the help.The truck is a 2008 Chevrolet Trailblazer,4.2 L straight 6 (inline 6 cyl) . The options are electric windows , seats , air ,cruise control, towing package and auto trans .
    Last edited: Mar 8, 2010
  2. unplugged

    unplugged New Member 1000 Posts

  3. twcserve

    twcserve New Member

    I just had this same exact problem with my 2008 Chevy Trailblazer 6cyl. 4.2L engine - it was a faulty secondary air injection solenoid - looks like they had to replace a valve and gasket also. Sorry I have no idea how to replace this though. $200+ cost or somewhere around there from the local Chevy dealer.

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