code 1443 help! - Ranger-Forums - The Ultimate Ford Ranger Resource


2.3L & 2.5L I4 Tech General discussion of 2.3L and 2.5L I4 Ford Ranger engines.

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Old 10-29-2007
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code 1443 help!

well i know it has something todo with the evap system, me and my dad swapped the valve out to see if that would fix it, no luck, the light came back on, so maybe its the sensor.

i think this has something todo with my truck getting crappy gas mileage.


any help or knowledge is appreciated.
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Old 10-30-2007
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For 95~97, P1443 is usually caused by one of two things or both. Chances are good that the Purge Flow Sensor has gone belly up. However, since the PFS is part of an expensive assembly, I would check the evap hoses first. In particular, check the underhood hoses that run from the engine to the PFS and to the carbon canister (DS radiator core support). It is possible for the hoses to split and leak over time.
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Old 10-30-2007
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i replaced all of the hoses, i guess im going to buy a sensor.

would this cause my truck to run really rich?
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  #4  
Old 10-30-2007
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Ok, I had the same code. I replaced the black plastic valve, the purge valve, and the evap canister and it all finally went away. Be careful when working around with the hoses though as you replace anything, make sure you're not an idiot like me and didn't tuck them back where they were or clamp them down with something so they don't get caught in the timing belt...which led me having to buy a new hoses and some adapters to make the new hoses work..lol
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Old 10-30-2007
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did your gas mileage get really crappy when you had the problem?
did it improve any when you fixed it?
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Old 10-30-2007
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Here's some more info. The first link has a resistance check that you can do on the Purge Flow Sensor before you replace it:

http://autorepair.about.com/library/faqs/bl647f.htm

http://www.obdii.com/ubb/Forum1/HTML/002192.html
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  #7  
Old 10-30-2007
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thanks bob!

ill check when i get done working.
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  #8  
Old 10-30-2007
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you just dont listen do you son.
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  #9  
Old 10-30-2007
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no i listen, i asked because i knew someone would know a way to test it.
im going to test it when i get home.

thanks again bob.
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Old 10-30-2007
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dude u had me confused ur code is p0443 i got my haynes manual out to look it up and it didnt have the other thing then i read down and saw the purge thing and well my book says that its the purge control valve permanently open go to ur parts store and ask them what it is it sounds like u have the same problem as me but mins called the octane sensor so idk go to the parts store and ask
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  #11  
Old 11-03-2007
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yes i had crappy gas mileage when it was an issue
yes it improved when i replaced it
yes, haynes has a different/similar code for this
my chilton manual says 1443
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Old 11-03-2007
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well, i replaced the sensor and still no luck..

time to buy a valve, i put a used valve on it before i got a sensor, who knows...

its always fun to spend money i don't have..
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Old 11-03-2007
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oh, i took the hose off the intake and plugged it, it seems to be running a little better and its not bogging down when i accelerate.

will this cause any problems?
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Old 11-03-2007
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ok, an update from my last post.

the truck seems to have full power now, and its getting better gas mileage.
no check engine light yet...

the idle is alot smoother now..


is it safe to leave it unhooked for now?
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Old 11-03-2007
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i think it was acting like a vac leak, causing the truck to run rich and dump gas.
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Old 11-03-2007
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i found something on ebay but the valve doesn't look the same it has a plastic cover over it, mine doesn't.

the part number is F57Z-9C987-BA, anyone know if the valve and hoses will work?
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Old 11-03-2007
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Quote:
Originally Posted by 5speedin2.3
the part number is F57Z-9C987-BA
According to the info in the link I posted above, that assembly is for a 4.0L.
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  #18  
Old 11-03-2007
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Quote:
Originally Posted by rwenzing
According to the info in the link I posted above, that assembly is for a 4.0L.
ah ok, thanks.

do you know if the valve and sensor is the same part?

everything seems to look the same, other then the plastic thing over the valve and the one hose.


also, is it safe to use my truck with it unhooked?
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Old 11-03-2007
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I think that there's a good chance that they are the same sensor and valve but I don't know.

If you drive with the hose unplugged, I believe that you are venting the gas tank into the engine compartment. That doesn't sound like the best possible scenario.
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Old 11-03-2007
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Quote:
Originally Posted by rwenzing
I think that there's a good chance that they are the same sensor and valve but I don't know.

If you drive with the hose unplugged, I believe that you are venting the gas tank into the engine compartment. That doesn't sound like the best possible scenario.
it should be ok for a week until i receive the parts in the mail i hope.
as of right now, im getting around 14mpg, so its staying unhooked, it seems to be helping alot so far.
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  #21  
Old 11-06-2007
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Quote:
Originally Posted by 5speedin2.3
it should be ok for a week until i receive the parts in the mail i hope.
as of right now, im getting around 14mpg, so its staying unhooked, it seems to be helping alot so far.
when i had the code i replaced the purge valve and the solenoid
both obtained from the local ford dealer. in retrospect i would have replaced the valve first (cheaper of the 2) and see if that made the code + CEL go away
i also replace dthe vac line connecting the 2 to the charcoal canister. i used regular 1/4 inch vac line. works fine.

you could also try cleaning th evalve first spray with carb cleaner.

anyway if you need the parts here are the numbers

ford part numbers:

F57Z14A606BA purge valve
E6ZZ9C915A solenoid

i installed both . then cleared the code and the CEL hasn't been on since

also check your gas cap if it's sealing well. a bad cap can also throw the same code.

btw , the bad parts did not effect my gas mileage at all or performance, but others have said it does effect mileage...

good luck
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