Question about 2004 Hyundai Santa Fe

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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

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SOURCE: Check Engine Code PO446

purge control valve sticking either open or closed. location depends on what engine you have

Posted on Jul 21, 2009

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SOURCE: i had check engine lite


Kindly mention the year, make, model and engine of the car.


Posted on Sep 12, 2010

  • 1297 Answers


your post is fairly vague...
a P0446 can be caused by many things including but not limited to a defective gas cap

to diagnose you need a factory scanner and a "smoke machine"

with these two you can control the system and fill it with smoke to find the source of the leak

the reasoning for this testing method is because the size of the hole you are looking for in the EVAP system is about the size of a pin tip

as for the air bag... do not mess with professional assistance because static electricity can deploy the bags

Posted on Sep 13, 2010

  • 197 Answers

SOURCE: my check engine light came

Some ck engine lights come on after 100,000 miles or so. When you take it to the shop they ck engine and reset the engine light indicator. Just a safety feature.

Posted on Sep 13, 2010

Testimonial: "Thanks fofr the quick response. I feel a lot less concerned about taking my car in."

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SOURCE: I have a 2004 Sante Fe 4 cyl. The check engine

OK To start with, you need to forget about the air conditioner until you get your engine running correctly. The HVAC is controlled by the Powertrain Control Module (PCM). The PCM is probably not allowing the HVAC to run due to all the engine misfire codes you are getting. It may be someting else, but until you get your engine running right, you could be spinning your wheels.

I have no clue what you are talking about when you say "Ignition Sensor" - there is no such sensor on any vehicle that I am aware of. There are many sensors that can affect the ignition like the Crankshaft Position Sensor, but none are called "Ignition Sensor".

P0300 Simply means that there is more than one cylinder misfiring.
P0301 means that cylinder #1 is misfiring, P0302 means that cylinder #2 is misfiring, P0303 means that cylinder #3 is misfiring, and P0304 means that cylinder # 4 is misfiring. (these are what are known as "current faults". The codes ending in "P" mean the same thing, but they are "pending" codes. Current faults MUST be dealt with FIRST.

The P0446 is not a valid code for a 2003-2005 Hyundai Santa Fe as far as I can tell. I tried to look the code up by application and it simply is not there. You may want to read the code again. Sometimes, if you are reading the codes with a "generic" OBD code reader, it will give the closest description it can for a "Vehicle-Specific" code. They are not allways correct. You may want to scan your computer with a scanner that is equipped with the Vehicle-Specific software for your vehicle. You will probably get a different rendering of the code.

The "generic" description of P0446 is "Evaporative Emmission Control System Vent Control Circuit" Again, the DTC list for your vehicle lists similar codes: P0445, P0447 and P0448, however it skips over the P0446 code. If you in fact have a problem with your EVAP vent solenoid circuit, it could, concievably be the cause of your misfire problem. It is possible that the vent solenoid is causing a huge vacuum leak. NOT LIKELY that it is causing the misfire codes, but POSSIBLE.

Anyway, there are literally HUNDREDS of parts that can be the cause of a misfire. This needs to be PROPERLY DIAGNOSED to determine the cause. It could be anything from worn-out spark plugs, a vacuum leak, a faulty fuel pump, all the way to a blown head gasket or cracked cylinder head. Whatever the actual cause may be, it is obviously affecting all 4 cylinders. (This will rule out some things).

Please also review this article:
What Else Could Be Wrong?

Posted on Jun 21, 2011

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Code po446 what is it

Its what is called the EVAP. system the code is for the vent solenoid .Gas vapor in a vacuum is drawn from the fuel tank when this vent is commanded to be open drawn into a canister filled charcoal and stored until the canister purge solenoid is commanded to open .
This happens when the engine speed is at a higher RPM level and is supposed to send the vapor to the engine to be burned instead of VOC'S going into the atmosphere .But its a crazy lie the last time I filled up more VOCS got into the atmosphere then a gas tank vent could do in 6 month or so .
You can try cleaning the filter in the vent solenoid it might work but the part is about 70 dollars its in the rear between the tank and the canister look for hoses .

Jun 18, 2016 | 2006 Chevrolet Impala

1 Answer

Code for po446 1999 lexus gs300

more likely replace vent valve.

Feb 23, 2013 | 1999 Lexus Gs 300

1 Answer

PO446 OBD code on 2005 4.8 liter Chevy Silverado

  • Evaporative Control Vent valve has only one purpose. It closes in order to seal the vent so the EVAP system can pressurize and ensure there are no leaks. Evap vent valve is usually supplied Batt. voltage with key on. The ECM's driver controls the ground, and when grounded, activates the valve (closing it). If the ECM detects a short to ground, and open,or a short to battery voltage on the control circuit, P0446 will set. Code also may refer to ECM detecting that EVAP system is unable to achieve or maintain

    vacuum during test.

    Possible causes

    • Faulty vent valve
    • Open, short or excessive resistance on Vent valve control circuit
    • Blockage of vent valve
    • Bad PCM
    Possible solutions:
    Replace Vent valve
  • Repair open, short, or resistance problem in control circuit
  • Repair open, or short, or resistance problem in power circuit
  • Replace PCM I hope this atleast narrowed it for you.

Dec 27, 2011 | 2005 Chevrolet Silverado 1500 2WD

2 Answers

I have P0446 Engine code on my 1996 Toyota RAV4. Any idea what that code and any suggestion? Thanks Al

The definition for that code is : P0446 - Evaporative Emission Control System Vent Control Circuit Malfunction

When I get this code on my Ford Escape it is the gas cap not being on properly to get a good seal. Double check the gas cap or replace it with a new one and have the code cleared.

Jul 05, 2011 | Toyota RAV4 Cars & Trucks

1 Answer

I have code number p0446 showing up what does it mean i have 2002 sante fe

You have an evaporative emission control system vent control circuit malfunction. You could ave a blocked or bad vent valve, a wiring problem or a problem with the PCM.

May 16, 2011 | 2002 Hyundai Santa Fe

4 Answers

My check engine light come up w/ all these code P0305,P0440,P0441,P0446 what's wrong Thanks

po305 is related to missfire on #5 cylinder
po440 is related to fuel tank pressure
pO441 is for evaporator purge flow malfunction
po446 relates to vent control valve electrical circuit malfunction

missfire is seperate from the other codes
as for the other three codes replace the vent control valve solenoid located near the charcoal canister the oth3er codes can relate to a faulty solenoid

after replacing light will only go out if you clear through a scan tool or three drive cycles of over 10 min each

Jan 10, 2011 | 2000 Lexus RX 300

2 Answers

What does po440 on a 2003 saturn vue mean with a service engine soon light on

That is a problem in the evaporative emission control system.
Could be anything causing it
Clogged filter in the charcoal canister
A leak in one of the vacuum lines
The purge valve not working,,,etc.
The best thing is to take it and have it checked out, they might have to do a smoke test to find the problem.
All they do is inject smoke into the system, if there is a leak the smoke will come out of it. All it takes is a pin hole in these emission systems to screw it all up.

Aug 13, 2010 | 2003 Saturn VUE

2 Answers

I checked the codes and one comes up its po446. i dont under stand what it mean so i cant fix it to get the light to go out.

P0446 Evaporative Emission System Vent Control Circuit.
The following are descriptions of all Evaporative possible codes:

P0441 Evaporative Emission System Incorrect Purge Flow
P0442 Evaporative Emission System Leak Detected (small leak)
P0443 Evaporative Emission System Purge Control Valve Circuit
P0444 Evaporative Emission System Purge Control Valve Circuit Open
P0445 Evaporative Emission System Purge Control Valve Circuit Shorted
P0446 Evaporative Emission System Vent Control Circuit
P0447 Evaporative Emission System Vent Control Circuit Open
P0448 Evaporative Emission System Vent Control Circuit Shorted
P0449 Evaporative Emission System Vent Valve/Solenoid Circuit
P0450 Evaporative Emission System Pressure Sensor/Switch
P0451 Evaporative Emission System Pressure Sensor/Switch Range/Performance
P0452 Evaporative Emission System Pressure Sensor/Switch Low
P0453 Evaporative Emission System Pressure Sensor/Switch High
P0454 Evaporative Emission System Pressure Sensor/Switch Intermittent
P0455 Evaporative Emission System Leak Detected (large leak)
P0456 Evaporative Emission System Leak Detected (very small leak)
P0457 Evaporative Emission System Leak Detected (fuel cap loose/off)
P0458 Evaporative Emission System Purge Control Valve Circuit Low
P0459 Evaporative Emission System Purge Control Valve Circuit High
At least the cap isn't loose for the gas tank.

I would clear the code with an OBD-II Scanner 'erase code' button, and see how long it takes for it to come back.

Aug 06, 2010 | 1996 GMC Jimmy

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