ok i have a 2001 dodge ram with 95000 miles on it and about a week or two ago my edge was reading 8-4 psi so i just replaced the pump and it was doing fine for a lil while now its only reading 0-4 but the truck seems to be running better with this pump so does any one have any ideas??? could it be a bad pressure gauge off the edge or??? i need help asap i wanan catch it before the vp44 goes out thanks guys