David wrote: The vehicle for an mot test would be tested through what is known as the BET test, if the vehicle fails to meet those limits, then a full CAT test is performed, as a guide these readings will be CO 0.3% or less, HC 200 ppm or less, lambda 0.97 - 1.03
David
Thought this was a Peugeot based "Elddis 350d" Motorhome??? Does the "d" stand for "Diesel"?...
The vehicle for an mot test would be tested through what is known as the BET test, if the vehicle fails to meet those limits, then a full CAT test is performed, as a guide these readings will be CO 0.3% or less, HC 200 ppm or less, lambda 0.97 - 1.03