The majority of my car is stock. I ran into some problems after last winter and boost leak tested and found my intercooler pipe connector fell off. It's sat for a couple month and now the cars idle is excessively high. When you are driving and let off the break the car will pull slightly and you will start moving, it also also makes it very hard to slow down.

Then, when you switch the vehicle into park after driving, the RPMs launch up to about 5 or 6k. While driving it is always around 2k. I Have done a boost leak test and got rid of any major leaks I could find. I've tried adjusting the BISS but it seems once any change is made to it, it will idle too low and stumble. I was leaning towards my throttle cable or throttle position sensor but could use some guidance. Thanks