I just bought my first LC 2 weeks ago - a '92 FJ80 - so I'm new to this forum and to the community of LC owners. It's a stock, two-toned, cloth interiored, no-frills rig. I already love this vehicle; I looked at several 60s but ended up wanting the extra horses in the '91-92 ('93 and up was out of my price range).
I have several questions:
Has anyone else had a problem where the lock (rear PS) sticks open? Is this something I can easily fix myself with little auto-mechanical skills? I'm a do-it-yourself guy around the house and haven't worked on my own vehicles in a couple of decades (I know, I know, what a loser!)

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I've heard rumors that if I replace my air filter with a K&N (?) I can squeeze out a few more miles from my gas; is there any truth to that? Any other mod's I can do to improve my fuel efficiency?
Before I bought the rig, the PO had to have the EGR valve cleaned to pass smog (Calif); now the CEL is indicating a 71 again for the EGR. A mechanic said it's not a big problem, but suggested I change the vacuum solenoid and the back-pressure transducer(?). I'm not sure if that'll permanenlty fix anything - he said the EGRs are notorious problems for the LCs. True or not?
Looking forward to hearing from you dudes.