5.4 P2195 code
#1
05-17-2016, 02:03 PM
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5.4 P2195 code
Hey guys, I have a 07 F250 with the 5.4 The problem I have is when the truck is started and its cold outside, it idles pretty rough, almost bad enough to die. Once you take off it runs fine, mainly at stop lights and when its in park is when it is idling rough. Every once in a while it will give the code P2195 (o2 sensor signal biased/lean bank 1, sensor 1). After it warms up it seems to clear up. I'm not sure what direction to go first. Truck has about 180K miles on it. Any suggestions would be much appreciated.
Thanks
Thanks
#2
05-17-2016, 02:19 PM
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Location: St. Louis (Out in the woods)
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Here is the list of possibilities from the PCED for your fault code:
Possible Causes:
Electrical:
Short to VPWR in the harness or HO2S
Water in the harness connector
Open/shorted HO2S circuit
Corrosion or incorrect harness connections
Damaged HO2S
Damaged powertrain control module (PCM)
Fuel System:
Excessive fuel pressure
Leaking/contaminated fuel injectors
Leaking fuel pressure regulator
Low fuel pressure or running out of fuel
Vapor recovery system
Intake Air System:
Air leaks after the mass air flow (MAF) sensor
Vacuum leaks
Positive crankcase ventilation (PCV) system
Incorrectly seated engine oil dipstick
EGR System:
Leaking gasket
Stuck EGR valve
Leaking diaphragm or EGR vacuum regulator
Base Engine:
Oil overfill
Camshaft timing
Cylinder compression
Exhaust leaks before or near the HO2S(s)
Electrical:
Short to VPWR in the harness or HO2S
Water in the harness connector
Open/shorted HO2S circuit
Corrosion or incorrect harness connections
Damaged HO2S
Damaged powertrain control module (PCM)
Fuel System:
Excessive fuel pressure
Leaking/contaminated fuel injectors
Leaking fuel pressure regulator
Low fuel pressure or running out of fuel
Vapor recovery system
Intake Air System:
Air leaks after the mass air flow (MAF) sensor
Vacuum leaks
Positive crankcase ventilation (PCV) system
Incorrectly seated engine oil dipstick
EGR System:
Leaking gasket
Stuck EGR valve
Leaking diaphragm or EGR vacuum regulator
Base Engine:
Oil overfill
Camshaft timing
Cylinder compression
Exhaust leaks before or near the HO2S(s)
#3
05-17-2016, 02:33 PM
Join Date: May 2005
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One thing that stands out is the vapor recovery system. My truck does have the well known problem of the carbon canister. Where I can't fill my tank all the way up. I can only fill my tank to about 3/4, then it starts over filling. I suspect the carbon filter is the problem, but it has been that way a while (3 years) and the rough idle just started a few months ago. Also it is interesting that the problem goes away once the engine gets warm.