Hello I was wondering if any Chrysler technicians can explain why does Chrysler call their Evap emissions valve a leak detection pump ?
I have many years of foreign car experiance and most manufacturers call their evap valve a canister close valve.
I was just wondering this because i was working on a 2004 dodge caravan and was wondering why the three wires to the valve? One must be a sense input but don't have a diagram . most of the foreign cars have a two wire so testing is easy just supply ground to close or open it and you can pressure test the system . Any info would be great thanks .