Check engine code- p1443 - Mustang Evolution

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Old 10-24-2006, 09:54 AM   #1
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Check engine code- p1443

I have a 1998 v6 Mustang. I have the p1443 code for my check engine light that has been on since before I can remember. I already replaced the gas cap and still has not fixed it. Also, my engine takes a while to turn over. It seems like there is not enough fuel pressure. Sometimes if it was just running, the engine fires right up. Does anyone know if the two problems could be related? Does anyone have any suggestions as to how I can fix the problems?
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Old 10-24-2006, 11:23 AM   #2
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Re: Check engine code- p1443

okay from my research, this is what i found:

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Ford On Board Diagnostics II, (OBD II) code P1443 means that the evaporative emissions charcoal canister purge sensor did not detect any flow when the canister should have been purging into the engine intake system. The purging, controlled by the computer,takes place when certain conditions are met, such as engine speed and temperature.What the computer operates to effect this purging is a 12 volt solenoid valve, solenoid means it has a moving piston in it which covers/uncovers ports in the valve so that flow does/does not take place. The "gunk" coming out of the charcoal canister will sometimes cause this piston to stick, resulting in purging not taking place when it should, the sensor in the purge hose detects this and sets a fault/trouble code and also turns on the "Check Engine" light. The electrical windings in these valves seldom fail, but anything is possible. To locate and check this valve, first find the charcoal canister, it will be a round or rectangular black plastic "box" with several different size hoses attached to it. If in doubt that you've found it, look at the bottom, there will be a plastic foam filter there---make sure it is not plugged up---. Once you've located the canister, start following the hoses attached to it. One will go towards the engine, follow that one along until you find the control valve that it attaches to, that's the valve that's not operating. Several things you can do now, just buy a new one and hope it is not the wiring or computer that's at fault. If you want to check it and the wiring, first, with key off, disconnect the two wire connector from it. Use a 12 volt test lamp, turn the key to "run" and check for current at both wires in the connector, one sould have current. Next, connect the test lamp between the two wires in the connector, start the engine and let it warm up, then run the engine up to around 1500 RPM or so, the test light should come on, if it doesn't, then it is the wire that was "cold" when you checked for power at the connector. or the computer. If the light comes on, then it is the valve. Remove it from the vehicle and clean it with an aerosol can of carburetor cleaner,use the "straw" that comes with the can and spray the cleaner into both hose nipples on the valve, alternatly spraying and shaking the valve. When you no longer get brown "gunk" coming out of the valve, reinstall it in the vehicle, but leave, if possible, the hose from the cannister disconnected. Start the car and let it warm up, (if need be), now raise the RPMs to 1500 or so. valve should now open and a vacuum should be present at the open nipple. If so, the problem is cured. On some OBD II equipped vehicles, repairing some problems will cause the computer to turn off the check engine light if the fault is no longer detected, other vehicles require that the computer be interfaced with and the code purged with a scan tool. Any questions, don't hesitate to ask. I'm curious as to what "Inspection Station" would not have sophisticated enough instrumentation to analyze the cause of a P1443 fault code.

taken from the site Ford Mustang Code P1443
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Old 10-24-2006, 11:24 AM   #3
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Re: Check engine code- p1443

also this seems to be a common code among pre 99 mustangs
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Old 10-24-2006, 11:28 AM   #4
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Re: Check engine code- p1443

I have the same problem. This is what I cam up with: http://www.mustangevolution.com/foru...vap-23318.html
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Old 10-24-2006, 11:42 AM   #5
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Re: Check engine code- p1443

Well, I had taken my car to a Mazda dealership to be tested for the reason of the light only because my roommate at the time worked there. They told me it could be any number of problems and to just go ahead and replace randomly. I thought that was a load of crap so I figured I'd find out what someone else has to say.
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Old 10-24-2006, 11:54 AM   #6
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Re: Check engine code- p1443

I think my problem is the Purge Valve. I will be replacing that soon to see if that does the trick.
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Old 05-06-2014, 10:33 PM   #7
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Ok so I am having an issue with this p1443 code also. I cleaned the purge valve and the sensor and also disconnected the battery to reset the cel. I had a small amount of black gunk come out of the sensor but can't get any cleaner into the valve itself because it's closed while in my hand. I just got the car about a month ago. I have bassani 3" off road x pipe, no cats, and cold air intake. The cel was on when I got the car due to what I thought was the o2 sensors bc of no cats. I scanned the car after it began bogging out on me during highway driving and ran into this code. Could the exhaust and intake have anything to do with this purge valve problem. I need help... this is so frustrating!!!
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Old 05-12-2014, 01:22 AM   #8
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Quote:
Originally Posted by smithnwess View Post
Ok so I am having an issue with this p1443 code also. I cleaned the purge valve and the sensor and also disconnected the battery to reset the cel. I had a small amount of black gunk come out of the sensor but can't get any cleaner into the valve itself because it's closed while in my hand. I just got the car about a month ago. I have bassani 3" off road x pipe, no cats, and cold air intake. The cel was on when I got the car due to what I thought was the o2 sensors bc of no cats. I scanned the car after it began bogging out on me during highway driving and ran into this code. Could the exhaust and intake have anything to do with this purge valve problem. I need help... this is so frustrating!!!
Trace the the hoses going in and out of the carbon canister and check them. Also check the hoses going in and out of the purge valve make sure they're not brittle and cracked or hard burnt like, if they are they might be leaking. Now I did a quick check for codes on my chilton bible and the code P1443 comes out to being the "Idle Air Control (IAC) valve speed fault" if thats the case it would be a super easy fix. Clean the throttle body with some carbon cleaner and check to see if the code pops again if it does then you would have to spend $30 to $40 bucks at Autozone and replace it. The sensor is on top of the throttle body. I think its actually the IAC simply because I believe you mentioned your car bogged down the purge valve I don't think would cause that.
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