Hi guys. I recently done a full service on my 320td compact and removed the swirl flaps, installed a vortex breather and a egr delete kit.
I never really thought about cleaning the manifold when it was off. It was dirty but not as bad as some I've seen. Would there be many benefits in removing it and cleaning it? Like better power?
Also now that I've blocked of the egr vacuum I get a buzzing for 10-15 seconds from the pressure convertor when I power of the engine. What would be causing that?
I will say, after I bought the car, 2 weeks ago, it was really smokey when I put the foot down but since doing all that work to it, the thing is clean. Very little of any smoke, also pulls nice.