unplug the battery, find the ECU in the drivers side kick panel, remove the black plastic piece covering the port, (this part is VERY IMPORTANT!!!) with the supplied sponge type thing, remove ALL of the plastic goo on the connectors. you may want to carefully use something more abrasive. once you are 100% sure the little metal connectors are clear of the plastic, plug in the chip. place a piece of packing or duct tape over the chip, securing it to the ECU. put the ECU back where you found it, and you are done. well, after you plug the battery back in.