In the past two months we've covered most of the emission systems that have appeared on recent automobiles. This month we'll conclude our discussion of these systems with those devices designed to ...

Last month we began our discussion of emission systems by examining various crankcase and fuel vapor control devices, along with throttle and carburetion equipment aimed at reducing automotive exhaust ...

If you're into diesel trucks, you may already be aware of the fact that a thriving market exists for aftermarket enhancements and modifications. There are various ways to get more horsepower out of ...

DOJ ends its crackdown on drivers who remove diesel emissions controls. The pollution impact will equal 9 million trucks - ...

Emission control systems in modern cars have slashed air pollutants such as particulate matter and nitrogen oxides. But these systems face two major challenges: carmakers cheating on pollution tests ...

Ram will recall more than 600,000 heavy-duty pickup trucks to reprogram their emissions-control systems after it was discovered that the trucks contain software that allowed them to emit more than the ...

Hondas are known for their reliability, but like any other complex machine, they can run into the occasional issue. One of these is the dreaded "Check Emission System" or "Emissions System Problem" ...