Quote:
Originally Posted by ShadeTreeMech
So is it the MAP reading that also comes into play when calculating the LOD?
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I would think so. The MAP is basically a direct reading of engine load. Here at 628 feet above sea level, the atmospheric pressure is almost always 14.3 psi, which is what the MAP sensor reads with the ignition on and engine stopped. One can draw the conclusion that 14.3 MAP with the engine running would be 100% load. However, I'm not quite sure how the bottom end is calculated. It wouldn't be reasonable to assume that 0 MAP is 0 LOD, because that is a perfect vacuum (and very hard to obtain). Perhaps there is a base value that represents 0 LOD, or maybe the GPH is factored in there as well somehow.