Nippon-Denso 550cc Fuel Injectors I searched around, and could not find any instructions on how to install fuel injectors on the web. After poking through my shop manual, I found out why - it is just too simple. I am not going to post instructions, as I think everyone should have a shop manual when working on their cars. However, There are a few things I would like to mention: I removed the three bolts that hold down the fuel rail, and the two bolts that connect the fuel line to the rail on the passenger side of the car. That seemed to be enough to get the rail high enough to pull the injectors off. You have to plug/unplug the power from the injectors with the rail lifted up a bit. Make sure you do not lose the three black plastic spacers that go under the rail! I had one fall into the engine bay and get stuck - took hours of digging around to find it.