SOURCE: CODE P0441
most likely the carbon canister fresh air vent is plugged with a spider web or dirt, the other option is the electric purge control solenoid is defective.
SOURCE: CHECK ENGINE LIGHT CAME ON
P0456,and P0441 are the Evap Possible problems
A code P0128 may mean that one or more of the following has happened:
PO715 is an input speed sensor on the
transmission. Usually causing problems with 3rd and sometimes 4th gear.
I would check a manual to find the location of the sensor to find if
you can change it yourself. This is sometimes the first sign of a Transmission going south on you
Hope this helps
Evaporative Emission Control System Incorrect Purge Flow
What does that mean?
This indicates that a part of the EVAP control system is no longer functioning correctly. The EVAP system consists of many parts, including (but not limited to) the gas cap, fuel lines, carbon canister, purge valve, and other hoses. The (EVAP) emission control system prevents the escape of fuel vapors from a vehicle's fuel system. Fuel vapors are routed by hoses to a charcoal canister for storage. Later, when the engine is running a purge control valve opens allowing intake vacuum to siphon the fuel vapors into the engine.
EVAP emission canister purge is controlled by a valve which allows engine vacuum to pull stored fuel vapors from fuel tank into the engine to be burned, rather than be vented to atmosphere. A vacuum switch is used to detect when flow exists. If the PCM commands purge and sees that the switch is closed (indicating no detected purge flow) P0441 is set.
Symptoms
Likely, no symptoms will be discernible to the driver, other than the illuminated Check Engine Light.
Causes
A code P0441 could mean one or more of the following has happened:
With a P0441 OBD-II trouble code, diagnosis can be tricky at times. Here are some things to try:
Other EVAP DTCs: P0440 - P0441 - P0442 - P0443 - P0446 - P0453 - P0455 - P0456
P0456....Evaporative Emission Control System Leak Detected (very small leak)
P0440....Evaporative Emission Control System
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