87 2.5 High Idle

[benjy_26]

So...this morning my MJ developed a high idle condition. It had happened once before, but had subsided on its own after a few blocks of driving. Today it has been present everytime I turn the vehicle on. After some cross-referencing, I ordered a new Idle Speed Controller from Oreillys (Borg Warner part # EC1403P). I'll let y'all know how it works out. One interesting wrinkle:while idling (super high), if I pull the vacuum line off of the MAP, the idle drops to normal and idles smoothly. What gives?

[Jtrux]

That's pretty odd. Might pick up a MAP sensor.