2010-2013 Mazda 3 Engine and Performance
Hi to all!
Due to some drivability issues I've decided to verify/diagnose my Mazda 3 engine's management (1.6i petrol). Car has 54.000 km, spark plugs, air filter, oil were changed recently, no cell.
With the help of a diagnose tool, I've managed to read the Long/Short fuel trims and air/fuel...