When I bought my 1994 truck it was dead in the water so I installed a PMD relocation kit to behind the license plate. It started immediately and still starts in 3 seconds in 40 degree weather. Recently it started conking out when the engine returns to idle when in gear. I changed the PMD again but the problem was totally unchanged even though it feels like a PMD issue. I am wondering if the fuel shut-off valve is acting up since it just seems to run out of fuel. It usually starts in 30-90 seconds after these stalls if I floor it. Is there any way to prove that it is/isn't the fuel shut-off valve? The bolt holding the FSV in is tweeked a bit......maybe a clue? Do these become intermittent with time? My lift pump seems to be working perfectly.