My vehicle runs erratically

My vehicle runs erratically. The tachometer is unstable. What could be the problem?
2013 0.9 Tce 90 HP Clio IV
There is no LPG in the vehicle.
Spark plug replaced with the original.
Coils were tested one by one.
The throttle is cleared.
There was a leak in one of the injections and it was corrected.
The map sensor has been changed.