Computer error codes.

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I drive a 92 crown vic with the 4.6 v8. I just recently replaced the o2 sensors, and pulled the codes off the computer, which said that there is unheated 02 sensor/ lean fuel on bank 2.
so i figured maybe it's a bad injector, and cleaned them out.
then i cleaned MAF sensor... and no luck. Then i figured that i might as well check for vacuum leaks, with carb cleaner... no luck there... so now i'm going to replace the plugs..... (the wires were replaced a week ago). I also replace fuel filter, and air filter.....
I tried reseting the computer , and still the codes come right back up...
any ideas as to what this could be?

posted by  rayoun

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