Got a CEL Today - Help?
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This is a discussion on Got a CEL Today - Help? within the General Maintenance, Troubleshooting & Accidents. forums, part of the Tech & Modifying & General Repairs category; On my way home from work the CEL came on. I ran my AP when I got home and the ...

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    Got a CEL Today - Help?

    On my way home from work the CEL came on. I ran my AP when I got home and the code is P0420 (Catalyst system efficiency below threshold). I'm put my car on Stage 2 real time map last Friday and haven't switched it since. Any ideas??? Thanks.

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    Registered User BlkWRXWag's Avatar
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    Quote Originally Posted by RichDoyle
    On my way home from work the CEL came on. I ran my AP when I got home and the code is P0420 (Catalyst system efficiency below threshold). I'm put my car on Stage 2 real time map last Friday and haven't switched it since. Any ideas??? Thanks.
    What's your base map?
    -Max.

    06 STU STI
    2006 STU Pro Solo Natl. Champ.
    www.zzyzxmotorsports.com

  4. #3
    Registered User AwdTurboWrx's Avatar
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    if your base map is still stage 1 you will get a CEL, i did also until i changed my base map to stage 2. That fixed everything.
    The Ghosts of Zooph and Sarcasmo Will haunt CLUBWRX forever!!!

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    My base map is stock, I'm guess that's the problem?

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    Registered User BlkWRXWag's Avatar
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    Quote Originally Posted by RichDoyle
    My base map is stock, I'm guess that's the problem?
    Ding ding - we have a winner
    -Max.

    06 STU STI
    2006 STU Pro Solo Natl. Champ.
    www.zzyzxmotorsports.com

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    So if I just make the base map Stage 2, there won't be a problem?

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    Registered User BlkWRXWag's Avatar
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    Quote Originally Posted by RichDoyle
    So if I just make the base map Stage 2, there won't be a problem?
    What do you think?
    -Max.

    06 STU STI
    2006 STU Pro Solo Natl. Champ.
    www.zzyzxmotorsports.com

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    Haha if I did everything I thought, I'd probably be in jail. Sometimes a little reassurance from experienced few is a luxury...

  10. #9
    Registered User AwdTurboWrx's Avatar
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    yes, make the base map stage 2 and you'll be fine.
    The Ghosts of Zooph and Sarcasmo Will haunt CLUBWRX forever!!!

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