I am not sure what the problem is that is causing it to jump, i just know that the only thing that i for sure could not figure out was how to get that sensor to connect. I did have a coolant leak due to using the old gasket which i replaced and fixed the leak. My car idles at about 1k RPM even on a cold start, no more high idling till the engine is warm. If this is normal for idle after modification, i dont know? I do hear a vacuum like noise coming from the engine, but i did also install a new CAI at the same time so i am unaware of if the noise is being caused by this or what? Ill post some pictures tommorow so you can see what it looks like, but as far as i know i have some hoses or lines in the wrong spot? Let me know if this clears up my problem at all.