Engine tune-up

[ricardo-cr23]

Hello guys,

My mechanic just returned the car to me, as he was fixing the Manual Transmission, and he told me that my car could use an engine tune up (things like cleaning the fuel injectors, checking the spark plugs, cleaning the throttle valve, things like that).

My question is, how necessary is to do this, if I do not see any problems with the car? I don't have excessive fuel consumption, vibrations, engine stalling, etc.

And if a tune-up is needed, can you tell me which parts have to be cleaned? To see if I can do it at home.