Hello everyone, i visit 3 tuners and everyone has different storry. My problem is next: Turned off dpf in 280 cdi OM 642 engine and when pulled out cerramics engine start slight blue/white smoke on idle. Some od them said that I need catalyctic converter back and the others said this engine must smoke with out dpf. Mechanic said that smoke must stop if remap is ok, but obviously not, Any help please what to do
Thanks