Re: ****sche 924S emissions test failure

let me try saying this again - NOX is not an O2 sensor issue - it's timing 
related, retarding the timing will fix the problem, just flip the switch
to 
the retarded position
<alordofchaos@[EMAIL PROTECTED]
> wrote in message 
news:1194622362.849083.18620@[EMAIL PROTECTED]
> On Nov 7, 7:29 pm, "ignatz" <bobthea...@[EMAIL PROTECTED]
> wrote:
>> Hi ! Can anyone out there help me on NOx readings on my 924S?  Just 
>> barely
>> passed a year ago - now 1850 where max. is 1250- runs great - maybe
just 
>> a
>> little hot - any ideas are appreciated. It is driven about 2000 miles a
>> month, so not from disuse.   thanx,  ignatz
>
> It could be 02 sensor running the car lean - they're a 30k miles
> service item.
>
> Make sure your exhaust is hot when you test... running an hour on the
> highway right before testing might help the cat. You might also want
> to make sure your cat is OK, not plugged, etc
>
> Could also be a vacuum leak causing a lean condition.
> 



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