Hi, I just did mine after about 2 years and I wish I did it long ago. It is very easy just the 4 screws and 3 sets of wires, there's one on the bottom for the pump. It takes 15 mins tops, including removing the air filter for access. If you do just the module it will be stuck on so tight you'll think there's more screws, but there's only 4. I got the whole module, pump and manifold from a junk yard for just over $100 but after I tested the pump, by jumping it to the battery, I decieded it wasn't worth the effort to do the rest. Also, according to the dealer the 97-98 module is discontinued. A rebuiler I talked to wasn't sure if he could rebuild it, but says the 97-98 are very reliable. Anyway, good luck.