Servus people, the Ibiza (now 115tkm) of my loved ones makes trouble… The 3rd cylinder (read out error memory with smartphone) does not spark sporadically. So the car runs otherwise without big problems. Pulls well, no excessive fuel consumption. Everything tutti so far. Except if it has operating temperature and then you let it run for a while with standing gas. For example, you stand in the traffic jam or for a long time before a railway crossing with running engine. Then the 3rd cylinder falls out or is too The engine control light goes on and it runs in the emergency program. If you turn off the engine now and wait for a moment – then you start the engine again without problems. So long until you let it run again for a while in the stationary gas… I have already changed the spark plugs. No success. Then the ignition coils exchanged among each other. No success (mistake would then walk with it). Today I exchanged the injection valves among each other. in success. =( ALWAYS comes the error from the third cylinder… Any ideas how to proceed now…?! Have to measure the compression ma by today somehow…