[Quote]WorldClassAccident – Member
I reckon if you fit a leaf blower just after the catalytic converter it will add a lot more air to the mix thereby reducing the proportion of NOX and passing the test.
Simple[/quote] dunno how its measured in cars, but from stationary sources like incinerators and power stations its measured against CO2 to prevent just that. Which is giving me a headache at the moment as im working on a cracker which means we have a vast amount of excess H2 to use as fuel gas, which produces no CO2 which means our emissions limit is piddly.

Double post