Great idea! Tons of people…

Great idea! Tons of people have the issue of not passing etest and especially some with older vehicles suffer too even tho they’re car is quiet and in compliance with the provinces emissions but can’t figure out certain engine codes rendering it undrivable as it wont pass etest with a engine code. I think it’s great we focus on the bigger and more substantial pollutants like in big semi trucks etc. I still Can’t stress how much black smoke I see those trucks emit all day, everyday. I think this is a great idea! thanks again