SheeB
Veteran Member
So recently I had to replace a defective maf sensor. After removing the old maf and inspecting it, I noticed a very fine layer of sand across the element. I use Mann cold climate air filters, and usually replace them every year (even though I did the CAT air filter restriction indicator mod). I do not have the snow screen though, and I'm wondering if this is an issue? I typically do not drive on sand/gravel roads either.