•  
    Results 1 to 2 of 2

    Thread: smog obdii HCAT and Catalyst not ready or X yikes.

    1. #1
      What's wrong with my car?
      Join Date
      Jul 2020
      Location
      CT
      Posts
      22
      Thanks
      2
      Thanked 0 Times in 0 Posts

      smog obdii HCAT and Catalyst not ready or X yikes.

      Hi group, once again my used aveo5 is not making me happy. I had a bad battery and replaced it but took it for a smog check the next day I failed with obdii not ready found out the car needs drive cycles to ready everything but really having a problem with HCAT and Catalyst not sure what to do...

      Has anyone had this issue I have 86k on this car... I was trying to replace the upstream but it's on too tight need to have a mechanic do it since I've already broken two bolts off (different areas) and went through the drama of drilling out and adding a helicoil.

      Could really use your help... Thanks in advance



    2. #2
      What's wrong with my car?
      Join Date
      Jul 2020
      Location
      CT
      Posts
      22
      Thanks
      2
      Thanked 0 Times in 0 Posts
      Hi so found out the car does not have an HCAT or a secondary air system I cleaned the throttle body, seafoam in the tank and a walmart injector service and damn I passed smog... also the throttle body cleaning I did really made a difference on the performance of the car touch the gas and you can feel immediate response... I highly recommend doing it I sprayed every hose plus the throttle body but be warned it smoked like crazy for 4-5 min I did this cold and with the engine off I sprayed about a full can and try to tilt the car so the overflow will go out of the throttle towards the passenger side of the car also put something under the car to catch the liquid...



    Similar Threads

    1. 2009 Aveo - P0420 (Catalyst system code) - Solved
      By Deano in forum Troubleshooting and Maintenance
      Replies: 5
      Last Post: 06-07-2017, 09:03 PM
    2. Failed Smog Aveo 2006
      By Aveo2006 in forum Technical
      Replies: 10
      Last Post: 07-01-2015, 02:29 AM
    3. Post catalyst fuel trim system too lean ?
      By vlcleaver in forum Engine & Drivetrain
      Replies: 4
      Last Post: 05-25-2014, 03:08 AM
    4. considering sale/parting out my Aveo that won't pass California smog
      By middleofnowhere in forum For Sale / Wanted
      Replies: 3
      Last Post: 05-23-2014, 12:39 PM
    5. Check Engine Light and OBDII
      By o4aveohb in forum Troubleshooting and Maintenance
      Replies: 5
      Last Post: 05-14-2008, 06:57 AM

    Posting Permissions

    • You may not post new threads
    • You may not post replies
    • You may not post attachments
    • You may not edit your posts
    •