See also:

Emission Control System
Your vehicle is equipped with an emission control system (the catalytic converter is part of this system) that enables your vehicle to comply with existing exhaust emissions requirements. WARNING ...

Engine Compartment Overview
Engine Compartment Overview ...

Mazda CX-7 2009 review
Ten bucks says the penny-pincher inside you is balking at the very prospect of a Mazda CX-7. It's a five-seat crossover whose turbocharged engine recommends premium fuel and returns subpar gas mil ...