The problem from emission is P0441 evaporation control system incorrect purge flow
SOURCE: I did a diagnostic test
the 96-99 had a recall fault with this one,maybe yours fits in the same catagory.Check with Hyundai dealership,irrespective of vehicle age.Also check that there is no fuel odor outside the vehicle,and that the fuel cap is sealing correctly.(when removing this after a warm day there should be a whoosh or shhh sound as it releases).
There is an official release report on this but for some reason I couldnt get it to post on here for you.I will try again soon to do that.
I hope this helps you.Get back with your findings and we can go further if needed.
SOURCE: Check Engine light - Code P0441 (Evap Emission
There is an evap purge valve located in the back of the driver side of the engine. This valve needs to be replaced. Had the same code a couple weeks ago. Replaced that valve and the problem was fixed. 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
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