Re: Smog Emissions results 1987 300E Mercedes

"Tube Audio" <murphysf@[EMAIL PROTECTED]
> wrote in message 
news:sLmWj.597$BL6.256@[EMAIL PROTECTED]
> Hi
>
> I have a 1987 300E live in California, however the car is from the east
> coast, so it is a 49 state car.
>
> I am up for my smog / emissions test in a couple of months.
>
> The NO have been high the last two tests.  And am afraid that they might
be
> even higher and fail the upcoming tests.
>
> Here are the results of the last two tests.  Any ideas of areas that I
> should look into would be a great help.
>
> Thanks
>
> 2004 Test
> 15mph 2602 rpm
> %CO2        15.0
>
> %O2            0.1
>
> HC MaX     110
> HC AVE        31
> HC MEAS      62
>
> CO MAX            0.71
> CO AVE                0.10
> CO MEAS            0.24
>
> NO MAX             772
> NO AVE                 237
> NO MEAS            768
>
> 25mph 1726 rpm
> %CO2        15.0
>
> %O2            0.1
>
> HC MaX     85
> HC AVE        20
> HC MEAS      35
>
> CO MAX            0.59
> CO AVE                0.09
> CO MEAS            0.12
>
> NO MAX             711
> NO AVE                 199
> NO MEAS            303
>
>
> %%%%%%%%%%%%%%%%%%%%%%
>
>
> 2006 Test
> 15mph 1735 rpm
> %CO2        14.4
>
> %O2            0.9
>
> HC MaX     110
> HC AVE        31
> HC MEAS      104
>
> CO MAX            0.71
> CO AVE                0.10
> CO MEAS            0.20
>
> NO MAX             772
> NO AVE                 237
> NO MEAS            765
>
> 25mph 1729 rpm
> %CO2        14.4
>
> %O2            0.4
>
> HC MaX     85
> HC AVE        20
> HC MEAS      63
>
> CO MAX            0.59
> CO AVE                0.09
> CO MEAS            0.16
>
> NO MAX             711
> NO AVE                 199
> NO MEAS            356
>

  Check the EGR system for blockages/restrictions and proper operation of
all 
components.