problems at evo IX

[user4002]

I recently buy an evo IX and I have big problem... When in idle the engine runs perfectly, but when in acceleration over 3000 rpm the engine interupts repeately , and i was at our service in Romania and they said that could be an ignition problem maybe the cable from the spark plug may be the problem. I want to know if anybody had that problem maybe u can help me. NOTE: The car has 3000 km and it was brand new and the problem from the beggining

[user1515]

When you say interupts, do you mean under acceleration the engine stops violently for a split second then carrys on again? If so it sounds like the overboost cut, you'll need to check the piping to the actuator and solenoid for leaks etc.
My 8mr did this and drove me nuts, took it into the dealer for service and asked them to check it out, they said they couldn't find any problems with it, but since then it has only done it once, the only thing I could think of was it was a problem with the air filter and when they replaced it at the service it cured the problem :???:

[user4002]

thank u for ur reply. They finaly figuer it out what went wrong... It was the spark plug. The ceramic part was smashed. I think first it was a small crack and then it growed , maybe on the transport... who knows. I am happy that the problem is solved for now. I hope it won't happend again. If it does is not from the spark plug.