Ok hears the deal i have a 92 classic and my gas mileage has gone to about 10 miles to the gallon and i have cheaked all the normal things and cant figure it out i have new plugs wires cap and roter new knock censer o2 censer witch keep comeing out with no tips on them ive cleaned the throtle body the egr valve the bpt valve and hose new fuel filter i think thats all oh ya and its inspection time ive never seen a car fail so bad my hc are 6.04 im alowed 1.20 co 111.0 im alowed 30.0 so if any one can help please do im going out of my mind thanx

do the plugs come out lookin the same? one cylinder more rich than the other? your car stumble and drive bad? Have you re-grounded your MAF sensor?
check the plugs.. replace if necessary(if you are having problems and fouling plugs pick up a set of bkr7e's.. coppers.. cheap and they work well..) and if the plugs are different.. one more rich than the other... take the fuel rail off and turn the ignition "on"(don't start!) and see if the injectors are leaking?

best of luck

the plug came out looking the same all with a nice even light brown coler well i did the maf reground no differance pulled the 02 sencer out and its broke again im going bald ripping my hair out

I GOT MY POWER BACK and my emisions numbers look alot better still didnt pass somehow my base timeing slipped and i was running at 0 deg btdc has anyone else had this happen or know how to keep it from happening again

I like punctuation...