>>271259583
Pro tip on cleaning.
Had a dead zone issue for a long time. Heard from a non vrg person to try this and now my dead zone code fix is now worthless cause this actually worked.
Step 1. Use a piece of paper and get under the gap and the rubber gasket like so. Slide around under it and in a nice circular pattern. 
Step 2 blow sharply into the region.
Should work like a dream. I guess it has to do with grime between the rubber and the baseplate?