I need to replace the throttle Body on my 2004 FX35, I have a p2135 code. I did some research and it seems the code is pertaining to the tp sensor but the sensor is built into the whole throttle body, does anybody have any idea on how to remove and replace the throttle body, additonally I was told once replaced the new throttle body has to be calibrated to the car, is there any truth to that, and once replaced will the computer recognize and reset.