code p0174 (CEL) - Ranger-Forums - The Ultimate Ford Ranger Resource


4.0L OHV & SOHC V6 Tech General discussion of 4.0L OHV and SOHC V6 Ford Ranger engines.

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Old 03-30-2005
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code p0174 (CEL)

CEL came on after muddin at River Ranch.....
only code p0174

problem (possibly dirty MAF)
or Running too Rich or to Lean (Bank 1 I beleive the guy at hondazone said)
o2 Sensor, which I could really care less about.

ok I went muddin, so I'm tihnking I'll clean the MAF and I also put in 89 instead of 87... which I take it I'm running to rich.

I plan on replacing the fuel filter, spark plugs and cleaning the MAF, any other ideas?
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Old 03-30-2005
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i'll look up the code when i get to work..
and I'll let you know what you need to do ...on,y thing is i dont get off untill 5:30 and i'm sure by then someone would have helped you ..
But I will still do some research ... I know what the code is just hard to diag. with out being able to look at the data that it is putting out...
take a look at it and make sure it didnt break off or its not cracked...
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Old 03-30-2005
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P0174 - System to Lean (Bank 2)

The Adaptive Fuel Strategy continuously monitors the fuel delivery hardware. The test fails when the adaptive fuel tables reach a rich calibrated limit
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Old 03-30-2005
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For lean and rich
DTCs:
Fuel system
Excessive fuel pressure.
Leaking /contaminated fuel injectors.
Leaking fuel pressure regulator.
Low fuel pressure or running out of fuel.
Vapor recovery system.
Induction system:
Air leaks after the MAF.
Vacuum Leaks.
PCV system.
Improperly seated engine oil dipstick.
EGR system:
Leaking gasket.
Stuck EGR valve.
Leaking diaphragm or EVR.
Base Engine:
Oil overfill.
Cam timing.
Cylinder compression.
Exhaust leaks before or near the HO2Ss
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Old 03-30-2005
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what would I use to clena the MAF? any ideas? throttle body cleaner? alcohol?
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Old 03-30-2005
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Something that doesn't contain oils should work. Carb or throttle body cleaner is usually good.
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Old 03-30-2005
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Quote:
Originally Posted by PickupMan92
what would I use to clena the MAF? any ideas? throttle body cleaner? alcohol?
there is a special MAF cleaner that is avalible at most auto parts places... i cant for the life of me remember whats its called but i used it on mine after the mudbath i took in ocala and the truck ran better than before it went swimming i think it was some kind of electrode cleaner or something... ask neil he was the one who reccommended it to me since he also has expierence with floating trucks
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Old 03-30-2005
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Per TRS's cleaning the MAF article "Carefully spray the filaments with an O2 safe carburetor cleaner, such as Gumout. Let it dry thoroughly"
I also read somewhere else I think it was called CRC Electronics cleaner or something..

Yeah here it is: http://www.fordf150.net/howto/clean-...low-sensor.php
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