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Help p0304, p0305

uribeaba

New Member
Joined
June 21, 2012
Messages
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City, State
San Ysidro, Ca.
Year, Model & Trim Level
1999 Ford Ranger V6 3.0
Hello to everyone here, and thanks in advance for any possible help.

I have a 99 ford ranger 3.0 flex fuel truck. symptom the truck has a small misfire.
The trucks cel came on a few weeks ago threw a p0304 code, i replaced the spark plugs nothing, I changed the wires nothing, I changed the coil pack nothing, I changed out the injector nothing. every time I did a repair i erased the code.
so finally i replaced the head, put everything back together and erased the code went out for a drive and...... same problem but know two codes p0304, and p0305.
Is there anybody out there that might be able to help me out???
I have read that it might be a bad 02 sensor, to a bad cat, or even the computer. how can i check to see if its the computer???

help.

Thanks
 
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