4kcsq Failed Emissions

Altieri, Anthony (MBFF cs) Anthony.Altieri at us.millwardbrown.com
Mon Mar 5 13:44:29 EST 2001


Sorry, forgot to mention that the NO reading passed by a wide margin (400,
pass is 1200)
Thanks.

> -----Original Message-----
> From:	Altieri, Anthony (MBFF cs) 
> Sent:	Monday, March 05, 2001 12:43 PM
> To:	'quattro at audifans.com'
> Subject:	4kcsq Failed Emissions
> 
> My '87 4kq recently failed CT emissions.  CO was 5.66. (pass is <1.08).
> HC barely passed at 161.1 (pass is <168.0).  Can someone please lay out
> possible causes for this type of failure?  I know it can't be diagnosed
> like this, but a list of possible culprits would be helpful.  As far as I
> know, the O2 sensor and Cat are suspect, but beyond that, I don't know.
> 
> TIA,
> 
> Anthony.
> 
> PS.  The car also failed because they said the fuel cap had a bad seal
> (???)  Any thoughts on that?



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