Injector or Valve Failure

First of all, hello friends, I bought a 1.4 16 Valve 2007 model 307 last month. As someone who owns a 206 for 4 years before that, there was a problem with my vehicle. The previous Info faulty error was giving me an error. controlled by compressor 4-3 The valve presses up to 210 2-1 leaves it at 90 The master said that the valves are burnt. There is no problem with idling in the gasoline in my vehicle, it is not bad in terms of traction, there is only a little vibration in the engine and there is a slight patter in the exhaust. Injectors came to my mind as far as I know. If it is clogged, it does not send the fuel it wants to the cylinder anyway. They measure the valve test according to the pressure of the incoming fuel, what kind of way should I follow? Could the problem be caused by the injectors?

How do we do this process, sir, frankly, I am looking for a solution other than the valves, it is a very expensive price, there is no fluctuation in the rev counter when idling, there is no problem in the starter, there is no problem in the starter, it reaches a speed of around 170 when driving on a straight road. There is a vibration in the engine and if you listen to the exhaust very closely, there is a small popping. I noticed this problem when I connected it to the computer by chance, but why this compressor test may be low, I am trying to solve it, as you said, if there is a ring sticking, is it solved in this way and we wait 30 minutes after plugging the spark plugs and pressing the starter for 5 seconds, and then we put the coil on and start it, right? Is it useful to throw wurth injection and engine cleaner as an extra?

We need to install the coil while operating normally, right? Without the coil it will not work anyway?