First off make sure the settings are right;
start with the [etc] menu by scrolling down to highlight it and pushing left on the joystick in the center of the control knob to advance to the next menu. Highlight the [sensor type] option in this menu and press the joystick to the left once again, scroll down with the joystick until [karman] is highlighted, now press in on the joystick to bring up a cross shaped sub-menu. Press the joystick to the left to illuminate [Pr
] and push in once again to go back one menu, once you can see [sensor type] and [car select] again scroll down to highlight [car select] and push right to advance. Here you should see either "4 cyl" or "6 cyl" and an arrow, twisting the control knob counter clockwise will decrease the number of cylinders. We want the number of cylinders to be set to "4 cyl", once this is complete push the joystick to the right to illuminate the arrow. Twist the control knob clockwise until the arrow points up and to the right, now press the joystick to the left to back up through the menus until you are back at the main menu.
Do this first and I'll check back later.