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High NOx and Volvo/Chrysler Ignition — a suggestion... 200 1986

posted by  Cliff M on  Sun Oct 9 11:37 CST 2005
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last visit: Sat May 31 12:47 CST 2014
[RELATED]

Yes I have the red cap distributor and I believe the LH Bosch system. Can anyone suggest most likely causes for low CO%(0.01) and high NO PPM (2055
/1855) readings? It does look like I have a very lean condition...could this be my airmass sensor? Oxygen sensor? Catalytic Converter? As a died-in-the-yarn DIY type I am not keen to take it to a smog shop so that they can give me the big wallet flush...any suggestions or diagnostic ideas will be appreciated.

Thanks!

Cliff






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