Question about Volkswagen Polo
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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
SOURCE: check engine light on po441
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
Posted on Jun 08, 2009
Both codes are with the EVAP SYSTEM, there are numerous items it could be. A repair shop that does Toyotas or the delaler would be the best to check it out for you. Its not anything that will leave you walking or disable the car.
Posted on Nov 13, 2009
Most of the time they mean:
p0441 = Evaporative Emission System Incorrect Purge Flow
p0422 = Evaporative Emission Control System Leak Detected (small leak)
MOre info at http://www.obd-codes.com/p0442
Posted on Jan 10, 2010
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