Good friend Diesel type fuel engines (which is that of your car) has an injection pump that is responsible for measuring the exact amount of fuel that will be injected into each cylinder usually the diesel fuel is less durable than gasoline (in case you are comparing it with a carbure Calibrating injector by injector ... It has to be a person who knows what he does and apart that you know how to do a good calibration job if it cannot be worse in case the poorly calibrated pump leaves you, check the spark plugs one by one and see well if they are burned in the part that goes inside the cylinder where the ignition is formed if they are burned there is a bad combustion and if the engine is being accelerated too much.
Salu2
3jo.