On Sat, 15 Aug 2015 10:42:24 -0700, "Snuffy \"Hub Cap\" McKinney"
NOX goes up as combustion temp goes up. If your EGR is not working
your Nox goes up. If the wrong thermostat (too hot) is installed, NOX
goes up. If the rad is bad, raising operating temps, the NOX goes up.
If timing is too far advanced, the NOX goes up. If the engine is
running too lean, NOX goes up, and of course, if the catalytic
converter reduction bed is failing, NOX out the pipe will also be
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