hey i have had this code for a while now and have replaced alot of little things. i have also read many threads on this cel. nobody ever knows what the problem is. they say "just get a new o2." that is not the problem. i read on one of these threads that it happened when an autometer a/f gauge was installed. I have an autometer phantom a/f gauge. and was wondering of you guys with this cel how many of you have an a/f gauge? maybe it is a weak signal going to the ecu, making it think you are running lean. or maybe i am an idiot. anyone???

ps. on my 1995 del sol vtec i have replaced:

fuel filter
o2 sensor
spark plugs
distributor cap and rotor
ignition coil and assembly
and had a fuel system cleaning, after i tried that pour in the tank stuff