Ok, I have set the idle on my other MX6 GT without problems. I know the basics here. Ground the green wire to disconnect the computer. Check to verify that the idle is at 750 +- 25. Easy. Well the problem that I am having is that I can't get the idle up above 700 and I don't know why. I can take it down till the car stalls, but not up. I like to have it set at least 800, and on my other car I can take it up further than that.... what gives? Anyone had any experience in this? The throttle wheel is setting at it's endstop, without much play in the throttle cable. Any other causes for this? Vaccume leaks still or would this be something else?