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Thread: catylist and evaporative system read incomplete- what does that mean?

  1. 06-24-2011 #1
    firebird0184
    firebird0184 is offline
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    catylist and evaporative system read incomplete- what does that mean?

    Ok, I just deleted the ole p0420 code, but in the VCM scanner, the catylist and the evaporative system both read 'incomplete'. I am trying to get the car ready for inspection, but I don't think it would pass inspection with these reading incomplete. . How can I fix/diagnose these? thanks.
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  2. 06-27-2011 #2
    Wingman520
    Wingman520 is offline
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    Quote Originally Posted by firebird0184 View Post
    Ok, I just deleted the ole p0420 code, but in the VCM scanner, the catylist and the evaporative system both read 'incomplete'. I am trying to get the car ready for inspection, but I don't think it would pass inspection with these reading incomplete. . How can I fix/diagnose these? thanks.
    you would have to do a drive cycle by driving the car... i think i still have a link for the GM one....

    here we go link for ya

    http://www.obdii.com/drivecycle.html
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