Hi I have an 03 crv awd with a k24, just bought it about a month ago and trying to work through the reasons they sold it, lol. I'm getting various codes related to the imrc, p1077 changed the solenoid and haven't seen it again. P0661 still present, Changed the imrc position sensor and now get codes p0661 and p0662. Having a shudder between 15-20 miles an hour or so. Not sure if its related but thought I read imrc issues can cause engine shudders. I have taken the intake off and cleaned it although it truly appeared to have been replaced at some point previously because was not really dirty at all in comparison to the junkyard ones I've seen and the rest of my engine bay. I noticed today while at the yard I am missing 2 vacuum lines, wondering if these could be related to my codes? First is in pic 1 item e8, the hose is supposed to run to the belt tensioner mount and hook up there, I cannot figure out what this hose is for. Mine is capped on both sides and not connected by the hose. Second is intake air bypass control thermal valve, the horizontal nipple is broken off, hose missing and hole in intake plenum not plugged.