Quote:
|
Originally Posted by legenddriver2004
...HC
...high HC leavels will cause O2 to go up which wil' cause the computer to think that you have a lean mixture so the computer will just pump more and more fuel which will lead to cat failure.
|
High HC indicates a very rich mixture, which means either too much fuel for the available air or too little air for the fuel supplied. I have no idea what you were thinking when you wrote that. High O2 is the opposite condition of what would cause unburned HCs, i.e. lean condition and would appear in your NOx section.
Quote:
|
Originally Posted by legenddriver2004
NOX
NOX is nitrogen Oxid.
|
Technically, It's "NOx" and it means "oxides of nitrogen", of which there are several species that result from combustion. NO, NO2, NO3, N2O2, N2O3, etc.
Quote:
|
Originally Posted by legenddriver2004
...also NOX highest levels will be when you have a stoichiometric air fuel ratio. that just means your air fuel is right where it should be at 14.7:1.
|
Not so. Highest NOx production happens at about 16:1. I offer "The Internal Combustion Engine in Theory and Practice, Vol #2" by Charles Taylor as my supporting material. He has a really nice graphic that shows the interrelation between fuel mixture and NOx production.
Otherwise, you wrote a comprehensive post. Why not spend a few minutes editing it for spelling, punctuation and capitalization for a really spiffy post.
[edited 30-Sep-06. Finally got my copy of Taylor's book back and checked the NOx graphic I mentioned.]