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AKADriver · 10-15-2002, 02:06 PM

High CO is typically caused by a rich condition, how was your HC reading?  Close to the limit?  Ideally you want low numbers for all three (like my car&#33<img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/wink.gif" border="0" valign="absmiddle" alt='

'>.  Yeah having no tests would be nice, but hey, consider it a clue that your car needs some maintenance.  A car that's running right should never fail unless it's heavily modified.

Did it fail at idle or at speed?

Try the basics first.  Clean the MAF and AIV.  Check your idle speed (IAA valve) if it's idle where you failed.

10-15-2002, 02:06 PM	#5
AKADriver Post Whore! Join Date: May 2002 Location: Springfield, VA Age: 43 Posts: 3,518 Trader Rating: (1)	High CO is typically caused by a rich condition, how was your HC reading?  Close to the limit?  Ideally you want low numbers for all three (like my car&#33<img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/wink.gif" border="0" valign="absmiddle" alt=''>.  Yeah having no tests would be nice, but hey, consider it a clue that your car needs some maintenance.  A car that's running right should never fail unless it's heavily modified. Did it fail at idle or at speed? Try the basics first.  Clean the MAF and AIV.  Check your idle speed (IAA valve) if it's idle where you failed.