Another possibility is that the cable at the pedal end is in the wrong hook on the quadrant. Most quadrants have two hook eyes for the cable. One for an adjustable cable and one for the non adjustable. You can see the two hooking points in the picture below. Try switching the cable to the other hooking point. My guess is that you're currently hooked in the one closest to the firewall and you need to be in the one closest to the driver.