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need help high nox emissions 200 1990

posted by  oscarcat on  Thu Jan 28 18:04 CST 2010
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last visit: Sat Jan 28 19:31 CST 2012
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Yes! An exhaust leak [cracked exhaust manifold, bad gasket where manifold connects to exhaust or exhaust header to block] allowing outside air to be sucked into cat converter seems to be a very common source on the board when all is said and done for high NOX. Unfortunately it is the last thing people find after replacing O2 sensor, cat converter etc. I' afraid my car has developed a leak based on the burble sound of exhaust in the manifold area, my NOX was barely passing last time. So sound is one tip.
--
1988 245A. Past: 1979 245A; 1987 244 M47; 1971 164E






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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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