As some of you know I have had a rpm related miss above 65mph for quite some time. The other day I decided to scan codes just for gits and shiggles. The only one I got was map sensor out of range, or map sensor out of calibration something like that I can't remember the number but it involved the map sensor. My question is could this whole miss be due to a bad vacuum line from the intake to the map sensor? That line and the one to the evap canister are the only two I haven't replaced.
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All I can suggest is try replacing those 2 lines and see if that improves the situation. You've replaced just about everything else why not just replace those 2 lines and see what happens. -
Yeah other than those lines the only thing I haven't replaced is the injectors, and at $60 each I won't be doing it anytime soon.Comment
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MAP out of range could very well be a vacuum leak. Certainly cheap enough to be worth trying. The MAP itself seldom fails, but when they do it usually runs like its totally unhooked. I haven't seen or heard of one getting sort-of bad but its certainly not impossible.86 Lincoln Town Car (Galactica).
5.0 HO, CompCams XE258,Scorpion 1.72 roller rockers, 3.55 K code rear, tow package, BHPerformance ported E7 heads, Tmoss Explorer intake, 65mm throttle body, Hedman 1 5/8" headers, 2.5" dual exhaust, ASP underdrive pulley
91 Lincoln Mark VII LSC grandpa spec white and cranberry
1984 Lincoln Continental TurboDiesel - rolls coal
Originally posted by phayzer5
I drive a Lincoln. I can't be bothered to shift like the peasants and rabble rousersComment
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This particular map sensor was new last september and its motorcraft.Originally posted by gadget73 View PostComment
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