Can it be done? I think i fowled mine out running too much race gas last week. Engine studders sometimes at low RPM's. Could it be just the fuel filter?

 

If your O2 sensor went bad from fuel contamination it will have to be replaced. It can't be cleaned like a spark plug.

Are you using leaded or unleaded race fuel?

 

OI ran Turbo Blue in mine and ended up replacing all 4 O2 sensors.
Passenger side front is a PITA.
Remove tire, remove inner wheel housing, and use a SHORT wrench. its a PITA

shopped around for hte best price at it was MURRAY DISCOUNT AUTO PARTS

 

Well, i found out after the fact from a friend that it was leaded fuel. He said that it makes his Grand National throw out an engine code when he runs it. Wish i would've knew that ahead of time! Anyway, i'm in NC and Murray's isn't around here (i checked the website). Does anyone know where i can pick up these sensors other than Ford? Price? Do i need to do all 4?

 

On my next door neighbors wifes Bronco we took out the 0 2 sensor and washed it down with carb cleaner.
Not sure if it did any harm or not.

 

I guess it couldn't hurt... anyone think different? I might try that before i go and buy new sensors.

 

Maybe a seafoam treatment?