Question about Hyundai Motor 2002 Sonata
Check engine light on po441 where is it located
P0441 = Evap. Emission Ctrl. System Incorrect Purge Flow. Listed Cause - valve stuck in open position.
INSPECTION (4 cylinder engine)
When disconnecting the vacuum hose, make an identification mark on it so that it can be reconnected to its original position. 1. Disconnect the vacuum hose (black with red stripe) from the solenoid valve. 2. Detach the harness connector. 3. Connect a vacuum pump to the nipple to which the red-striped vacuum hose was connected. 4. Apply vacuum and check when voltage is applied to the EVAP Canister Purge Solenoid Valve and when the voltage is discontinued.
Battery voltage Normal condition
When applied Vacuum is released
When discontinued Vacuum is maintained
V6 Purge Solenoid Valve
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Posted on Jun 08, 2009
PO441 - 03 Elantra. Can I remove purge valve from car (behind gas tank) and simply blow thru for diagnosis? Is removal difficult?
Posted on Jun 20, 2009
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Posted on Jan 02, 2017
P0420 is catalyst system efficiency below threshold (bank 1)
P0440 is evaporative emission control system malfunction
P0441 is evaporative emission control system incorrect purge flow
Posted on Mar 29, 2009
Purge Control Valve Problem
The "Purge Control Solenoid Valve" is the "Purge Control Valve".
Rough idle is a typical symptom of something amiss with the purge control portion of the evaporative emissions system. It could be the valve itself is not operating correctly, the evap canister (vapor canister) may be leaking, or full of raw gas instead of vapor, or maybe even the purge control valve is getting a faulty signal from the ECU.
The soleniod is checked by applying a voltage to it and checking to see if it closes, or opens (I'm not sure if its un-energized state is normally open, or normally closed). If the valve is bad it is a no-brainer to replace.
The vapor canister can be removed and checked to see if it is full of raw gas (not supposed to be), but checking it for leaks is a bit involved, and probably requires equipmet not normally owned by a home mechanic. Vapor canister failure on cars with a lot of miles is common. Replacement is the fix.
Of course if the ECU is not sending a purge signal to the valve correctly, figuring out why may proove difficult, and possibilities could even include a faulty ECU. I expect this is unlikely though.
It's a $20 part. I first would change pcv valve because it can give same error if it's plugged up. You can always remove it and shake it. It should rattle around real easy. If not, it should be repalced
Posted on Apr 17, 2010
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