thermorex wrote:
In sense of fairness, I can see a point in regards to specific warnings for ehm... Many folks in tdi forum ran into similar issues due to freezing ehm because of condensation. That's why punching holes in the ehm was recommended, especially for people in the north. Personally, I don't like ehm since its some sort of band aid compared to provent, which, if done right, it's unlikely to freeze (even though I've heard of such cases, but never happened to me and I live in Cleveland, where its almost all the time below freezing during the winter, but when I drive the crd I always go over 10 miles and the car is always garaged while at home). From the people that used ehm, many routed the hose close to the engine compartment to allow the frozen condensation to melt. But yea, ehm can be a dangerous mod if not done right... And almost pointless when having a gde tune.
I was in the TDI gang a long time ago, and I had the Epsilonion device on my 98, the diesel geek EGR delete along with the MAF twist on my 2002, I even tried the EHM back in those days, but way back then we also came to a logic that if you stop the CCV the EGR will not plug up the manifold, or if you stop the EGR the CCV will not plug up the manifold.
I really do not miss the odor of CC vapors or the oil stain on my garage floor, glad I just went with the EGR delete, cause we all knew a long time ago that is was the combination of the two that caused the build up in the manifold and on the MAP.