Maybe the question is more complicated than the answer.
Yes and no.Some faults can be cured at the drop of a hat hey presto all done.
Others can lead a merry dance.
Before any diagnosis can be issued information must be gathered from as many sensors as possible.
Live data,fuel trims waveforms and above all the customers own testimony about how the car drives.
Careful building of the picture then leads to a final verdict and solution.
Sensors and injection system components are expensive so if a garage does go the part swapping route you will soon be facing a steep bill
lunar auto diagnostics
Full range of engine fault diagnostic services Contact us for help
125,east bawtry road
Lunar auto diagnostics