I have a bit of a mystery with my engine that has left both my mechanic and I scratching our head. Here's the story: Generally my Cruiser runs well. It's getting a little tired, but runs incredibly well, especially for the mileage. It is a 1989 FJ62 with ~330k is all original as near as we can tell. However, it has had some stalling problems that appear to be related to moisture. The NW in winter is a pretty wet place, but it has only sputtered and stalled when I am, or have recently been, running at highway speeds on a water logged freeway where there is that ultra fine mist kicked up by a mess of cars on a wet freeway. The stalling feels very much like a fuel problem. The first time it happened I changed the fuel filter thinking that it was just overdue. That wasn't it. We've checked the fuel pressure and it checks out well within spec. Good compression. No identifiable vacuum leaks. Even though it doesn't feel like an ignition problem, we also double checked the distributor for moisture, and it was dry. Any ideas?