what in the name of god is a leak detection pump, and where do i find it? truck is throwing code p1494 "Leak Detection Pump Switch or Mechanical Fault". i need to get an inspection, and this just happens to happen. i can shut it off for two days with my scantool, but then it comes back on.

 

under the fuse block

 

its behind the left headlamp infront of the power distribution center, it has 2 wires going into the top of it, you'll see it

 

^ ur rite