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need help high nox emissions 200 1990

posted by  runwld2 on  Tue Jan 19 12:03 CST 2010
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last visit: Tue Sep 30 13:11 CST 2014
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High NOx is due to high combustion temperatures. So looking for an air leak is a good idea. Check the O2 sensor output to see if you can verify a lean condition.

If running lean, how is the engine smoothness at idle?
Check the plugs, if one is different it would indicate a manifold gasket leak.
--
84 242Ti IPD bars&springs, 89 745 16v M46 IPD bars, 89 744 16v M46 IPD bars, 93 945 Turbo AW71, 91 245SE AW70 IPD bars, 93 245 CLassic M47






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New need help high nox emissions [200][1990]
posted by  Josh Bolivar  on Tue Jan 19 02:30 CST 2010 >


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