Smoothness issue is resolved
vacuumbox of the egrcooler bypassvalve is leaking wich means the enginepads dont receive enough vacuum to smooth the engine at idling
Blocked the vacuumhose of the vacuumbox wich resolved the vibration symptoms
Im wondering if the box can be replaced because it seems the connection too the throtle house is dirty with oil and maybe also not airtight
Saw no bolts etc
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