I didn’t find a procedure on here for replacing the fuel pump so I wrote one. If i missed it someone can delete this. This writeup is based on a fuel pump upgrade on a 1990 RS.
Before you start i’d suggest you run the tank as close to empty as possible.
- take out the back seat, unplug the wiring and push the gromet thru so it falls free.
- remove plastic cover under car next to fuel tank, under you will find the fuel lines, disconnect, I think there are 3 of them. Also disconnect the fuel tank fill hose and vent hose. If you are having troubles with the lines, you can do most of step 3, lower the tank a bit with the jack and then work the lines.
- brace fuel tank with jack, remove 2 bolts holding tank straps in. Should be able to drop the tank, you need to clear the exhaust in the front and on the pass side so kind of angle it out.
- on the top of the now removed fuel tank remove round metal plate that all the lines you just disconnected went to and slowly pull out the pump, may need to turn it a bit.
- replace fuel pump per instructions.
Install is reverse, a second pair of hands makes putting the tank back in MUCH easier.