Hey all, just finished installing a fresh fuel filter on my 92 fj80. It was generally running like s***, so I started with a new cap, rotor, plugs and wires. That made some improvement, but the milage is still less than 8mpg so somethings still wrong, plus there's a stumble just off idle that goes away if I floor it. I read the posts about the o2 sensors, so I'll do those soon along with new cats. Anyway, from the look of it, the fuel filter may have well been origional at 160k, so I replaced it. Strangely, the off idle stumble has disappeared. I also greased the ujoints and slip splines while under there, but I don't see how that could be related. Wouldn't a clogged filter be more likely to affect higher rpm performance? Seems that more rpms = more fuel, or am I missing something? I've still got some driving to see if it changes my milage figures. Seth