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Failed Nitrous Oxide Emissions (archive)
[ Follow Ups ] [ 7-series (E23) Message Board ] [ Msg. Board FAQ ]
Posted by John M on December 30, 2001 at 15:58:17:

Anyone have any suggestions on lowering the NOx emissions on my 1983 733i? Here in jersey the allowable NOx is 1110 my car scored 1170! Close only counts in horse shoes. The car runs fine, the O2 Sensor is good, all other emissions were well below normal. A mechanic told me to get the catalitic convereter real hot by by keeping RPM's around 2500 all the way to the test site. The hotter the cat the more NOx is eliminated.

Any suggestions would be greatly appreciated.

Thanks,

John M

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