Fuel pressure is at 25-30 at the rail

1993 FORD F-150
350,000 MILES
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BRANDON1921
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1993 f150 5.0 DTC code 41 HO2S reading lean, Replaced O2 sensor and still pops up, Fuel pressure is at 25-30 at the rail. Fuel filter changed and same.
Mar 12, 2013 at 11:41 PM
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ASEMASTER6371
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first, codes never identify bad parts, just failed systems.

fuel pressure is too low should be 40 to 45

look for vacuum leaks. check pcv valve as well

Roy
Mar 12, 2013 at 11:44 PM
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BRANDON1921
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Its got a new pcv and sprayed carb cleaner on all vacuums and even tried the soap trick and nothing
Mar 20, 2013 at 9:57 AM
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