On the later models, there is no lever on top of the computers in the box. You have to take the "sides" of the box off by taking out a screw on the rear corner toward the engine and prying back the clips at the bottom on all sides. once the box is off, you will see pink slides at the base of each computer. Push the slides toward the front of the car...both sides of the TCU and wiggle the unit out of the plug. Be sure not to touch the pins and reinstall carefully. One other thing to try before you pull the computer. On the strut tower, drivers side, right behind the air cleaner, is a ground connection. It's a 10mm bolt. Take it off and clean it. I take some sandpaper and remove the paint from the contact point on the strut tower. This is the signal ground for the computers. I have had some success curing strange problems by just cleaning the ground connections. Good Luck