Ratpatator
Full Access Member
I would try pulling the BBK throttle body and go back to stock. You may need to unload and reload the tune when you do.
I had a similar high idle situation one time. I have a tuned Roush SC, but the situation may be the same.
I had pulled the twin TB off to clean it. While off, I opened and closed the blade by hand to spray out the throttle body blades etc., reinstalled, plugged everything in, and fired it up.. Instantly ran at high idle, so I shut it off. Turned the key forward to the accessory switch and punched peddle to the flor several times then cycled key back to off. Fired it back up and it was back to normal idle.
Guessing me opening throttle by hand, required the TB to calibrate with the peddle once I plugged it back in.
Whatever it was, mine went back to normal after the reset.
I will definitely give this a try. I did open the TB up before I installed to make sure everything was working right. Thanks