After landing yesterday, the engine nearly stopped – as if the idle RPM was set way too low. I have had that happen before, years ago, but it was adjusted and was OK afterwards. But this time is much worse and on a closer look it turns out that the fuel flow near idle is 4 GPH when it should be about 2.5 GPH, so the engine is getting a massive rich cut. In flight, 2hrs at 10.5 GPH, it was...