Failed Emission Test

[scirocco at vintagewatercooleds.com (Eric S)]

NOx can be raised by running too lean, with your HC numbers, thats what I
suspect.  Timing is also suspect.

-- 
Eric
www.vintagewatercooleds.com

1981 Scirocco S (TDI swap project)
1981 Rabbit Truck LX Diesel -FOR SALE-
1990 Corrado TDI
1990 Fox Wagon
1991 Cabriolet (2.0 crossflow 8v project)


Rick Kellner said:
> My 1987 16V failed its emission test on Friday.  The NOx was over by a
> fair amount however all the other emissions were very low.  When the NOx
> is brought into specs the other will rise.  Here are this year's numbers
> and the numbers from the last test two years ago.  I want to make sure
> it is in specs when I go for the next test since you only get one free
> re-test.  I will probably just bring the car to my local VW mechanic and
> have him set it up and check it on his machine before the state test.
> Rick.
>
>                         HC                    CO%                NOx
> Limits               278                   .89                    1944
> 2003                 162                   .24                      896
>
> 2005                  31                   .02                    2488
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