i have a 98 prelude and i get these number and i have I/H/E. the reason you see different number is due to the fact that the prelude comes with a featured called ilde air bypass which are butterflys in the IM and they are controlled by a black box on the underside of the IM. the nipples on the box break easy. so if your IAB is working your MPG will be nice and if not then your MPG will suck





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