Servus guys, I really have a problem with the 90 five-cylinder NG. It all started with the fact that he suddenly did not jump cold any more one night, only after five minutes. Orgel so slowly on three pots. In the warm condition the idle was quite high – about 1400 rpm. I then left a colleague, he somehow screwed around the mixture. Then he didn’t run at all. Then I dragged him into a workshop. They put him in again so that he runs again. Ka It was still not special. Idle at once very low. Then it often happened that he had short dropouts when the acceleration started. Also when the engine started. Sometimes the engine completely shuts down and I get the orange lamp. I start again and everything normally to the top. Again to the workshop. Error memory read out. ECU asserts. Switched, in the mer still equal. Control valve for idle control changed, since then the idle has been stable only the rotation The dropouts still. WHAT CAN I DO??? I’ve got a good 800 € fried now!!