Injection problems with my peugeot 306

Good afternoon first of all, I am new in this forum as well as in the brand, I have bought a Peugeot 306 of 99 which recently eats with injection problems (I think), slow down, lack of strength or drowned (especially in low at less than 2000 rpm; I wanted to know if you have knowledge about it, what can be the problem, the fuel regulator (in the injection ramp) In the gasoline pump ??

In Relay the vehicle works more, that is, the engine trembles and the escape noise is like cut, as it does not stop, if that is the case it is usually the fault of the coil that happens to the 206, although you must chacar the spark plugs before.

is dile or gasoline

Hello, it is a gasoline, 1.8, 16 valves.

It begins by disassembling the cleaning injectors and cleanses the obturacion uerpo