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Re: Ford O2 voltage leak (one for the books)
koeo fuel pres should be 38-40 psi. koer should be 29-32.
these are normal readings for all ford return systems
except the 4.9l which is 55 psi. i don't care what the book
says(8 years in ford dealers(ford smt)). what kind of
volume? ![]()
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