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2002 f350 sw cclb I'm getting p1211 code every thing was gone through about a month ago hpop injectors ipr icp oil lines turbo truck runs nice but I can tell something isn't right scan comes back 1211 cylinder comp test p1211on demand self test p1211 comes up Running at idle 2000 rpm when at idle it is erratic like 650 to 725 to 660 to 700 that at idle and my speed odometer isn't working and I changed the speed sensor any help would be great
