Question about 1998 Toyota Corolla

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Engine code P0441 was pulled at shop,was informed that it was E G R valve,but toyota part's counter has no listing for an E G R valve for that model. can some one help me?? and do not see any thing around the throtlle body, like hayne's manual show's.do have some of car apart,air box,throttle body,nessc' hose's etc.

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Who told you this was a EGR code, it is not it is an EVAPORATIVE EMISSION CONTROL CODE
Definition Evaporative Emission System Incorrect Purge Flow
REPLACE THE PURGE FLOW VALVE

Posted on Apr 29, 2010

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Posted on Jan 02, 2017

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What are the probable causes for DTCs P0440 P0441, and P0446?


code p 0440 refers to EVAP system--system malfunction==causes --hose connections --intake leak---EVAP canister purge valve
code p 0441 refers to EVAPO system --incorect flow detected ====causes --hose connections ---intake leak---EVAP canister purge valve
code p 0446 refers to EVAP system---vent control--circuit malfunction====causes wiring---EVAP canister purge valve ---ecm
replace the purge valve
as to where it is , the location will be in the workshop manual or have a shop point it out to you.

Aug 29, 2015 | 2001 Toyota Camry

1 Answer

P0441 what dose it mean and how can I fix it .toyota camery le 1998model


P0441 1998 Toyota Camry - Evaporative Emission Control System Incorrect Purge Flow

When is the code detected? Pressure in charcoal canister and fuel tank does not drop during purge control (2 trip detection logic).

Possible symptoms: - Engine Light ON (or Service Engine Soon Warning Light)
- Possible a noticeable fuel odor caused by the release of fuel vapors

P0441 1998 Toyota Camry Description: The Engine Control Module (ECM) tests the Evaporative Emission (EVAP) system for the following conditions:
- Large and small leaks

- Excess vacuum

- Purge flow during non-commanded conditions

- Fuel Level and Fuel Pressure sensor faults

- EVAP Purge and Vent Valve faults

The ECM monitors the Fuel Tank Pressure sensor in order to determine the level of vacuum/pressure in the EVAP system. The ECM commands both the EVAP Purge Solenoid and the EVAP Vent Valve ON when the conditions are met in order to apply an engine vacuum to the EVAP system. The ECM commands the EVAP Purge Solenoid OFF once the system has reached a predetermined level of vacuum. This test verifies if a vacuum can be achieved in the EVAP system. Failure to develop a vacuum may be caused by a large leak or a restriction.

P0441 1998 Toyota Camry Evaporative Emission Control System Incorrect...

Possible causes - Missing Fuel cap
- Incorrect fuel filler cap used
- Fuel filler cap remains open or fails to close
- Foreign matter caught in fuel filler cap
- Incorrect fuel tank vacuum relief valve
P0441 Toyota Evaporative Emission Control System Incorrect Purge Flow

Jun 01, 2015 | 1998 Toyota Camry

1 Answer

Pocket scan PO441 code


P0441 TOYOTA - Evaporative Emission Control System Incorrect Purge Flow

Possible causes- Missing Fuel cap
- Incorrect fuel filler cap used
- Fuel filler cap remains open or fails to close
- Foreign matter caught in fuel filler cap
- Incorrect fuel tank vacuum relief valve
Tech notes There are factory service bulletin for the following Toyota models:




2003-2004 Toyota 4Runner
2003-2004 Toyota Tundra
2004 Toyota Camry
2004 Sienna
2004 Highlander
2004 Solara
Toyota Factory Service Bulletin OBDII Code P0441

Sep 14, 2012 | 2003 Toyota Highlander

1 Answer

1998 toyota camry, 2.2L 4 cyl. P0325, P0441 and P0446 trouble codes


Code 325 is for a problem with the knock sensor circuit, code 441 is for an incorrect flow with the purge valve and the vent for the gas tank, and code 446 is also for the vent control circuit.
I would clear the codes and see how many come back after a test drive. You may need a shop manual to test the circuits.

Sep 11, 2012 | 1998 Toyota Camry

1 Answer

Error Code P0441


A relatively rare trouble code for Toyotas.. The most common cause here is a vacuum leak in the system that prevents fuel vapor from reaching the charcoal canister, where it is then sent to the engine via the opening of the PCV valve. To determine a leak test, you would need to visit a mechanic. But something you could do yourself is verify the fuel cap and filler neck are both clean and fit tightly together. Make sure there is no dirt, and the O-ring is not damaged/dirty/missing as this could allow fuel vapor to leak, thus triggering the sensor.

My personal guess here though would be a bad valve. In my line of work, I deal with faulty valves all the time. A valve consists of various moving parts and the ones that are solenoid operated, such as yours, can develop electrical faults over time. You can check the solenoid portion of the valve yourself using a multimeter set to Ohms and placing the two leads across the connector, one on each prong. Remove the power connector from the valve first of course. A typical solenoid will give a value something like 3 Ohms. (A solenoid is a coil of wire wrapped around a core which is usually attached to the device the coil is operating. When a current is applied, the coil forms an electromagnet that either pulls or pushes the core to cause valve operation. Your fuel injectors work in this way).
Should you see a reading less than 3 ohms, approaching zero, you have a short. If you see a very high reading or an "0L" or no reading at all, or "infinite", you have an open circuit. In both cases, the solenoid has failed and needs to be replaced.

Your canister could also be clogged, and despite Georgia's laws regarding the canister, it is a part of the purge system that needs to be present, and in good condition to allow proper operation.

I have included a link to a helpful information page which may further assist you.

Hope this helps!

P0441 Code Toyota

Apr 18, 2017 | 2001 Toyota Tacoma

1 Answer

Code 0441 where is the unit and how to fix it ?


P0441- Evaporative Emission Control System Incorrect Purge Flow
This indicates that a part of the EVAP control system is no longer fuctioning 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 contolled 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:
Bad vacuum switch
Broken or damaged EVAP line or canister
Open in PCM purge command circuit
Open or short in Voltage feed circuit to Purge Solenoid
Faulty purge solenoid
Restriction in EVAP solenoid, line or canister
Corrosion or resistance in purge connector
Bad PCM

Possible Solutions: With a P0441 OBD-II trouble code, diagnosis can be tricky at times. Here are some things to try:
Common Chrysler fix - Replace Leak Detection Pump / LDP
Repair damaged EVAP lines or canister
Repair open or short in voltage feed circuit to Purge Solenoid
Repair open in PCM purge command circuit
Replace purge Solenoid
Replace vacuum switch
Repair restriction in Evap line or canister or soleniod
Repair resistance in purge connector
Replace PCM


Hope helps.

Apr 24, 2011 | 2000 Toyota Camry

1 Answer

Po441 & po440 engine codes


Here is detailed info:

These codes tell you that there is a vaccuum leak.

Check your gas cap to see if it is tight, if it is, you should probably replace it as that will cause the codes to appear. Here is some more detailed information as well.

DTC P0440 is recorded by the ECM when evaporative emissions leak from the components within the dotted line in Fig. 1, or when the vapor pressure sensor malfunctions.

DTCs P0441 and P0446 are recorded by the ECM when evaporative emissions leak from the components within the dotted line in Fig. 1, or when there is a malfunction in either the VSV for EVAP, the VSV for pressure switching valve, or in the vapor pressure sensor itself.

Basically, the P0440 code is set when there is a vacuum leak in the system, at cold engine start the VSV is open and pulls the lines into a vacuum. Then the VSV closes and the vacuum should stay roughly at the same spot. If the pressure increases rapidly (aka loses vacuum) then the pressure sensor sees that and sets a DTC and turns on the MIL. From what I gather from P0441, the system doesn't pull into a vacuum.

Feb 26, 2011 | Toyota Highlander Cars & Trucks

1 Answer

Code P0441 and P0446. What does it mean?


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.

Nov 13, 2009 | 1998 Toyota Corolla

2 Answers

1997 toyota camry check engine light on codes are po441,po446


p0446 is an evap code for incorrect purge flow, check the rear vacume switching valve. its above the rear sub frame

Apr 05, 2009 | 1997 Toyota Camry

3 Answers

P0440,p0441,p0446


These codes are all for the Evaporative Emissions System.

P0440- Evaporative emissions system fault- just saying there's something wrong with the system.

P0441- Evaporative emissions system- Incorrect purge flow- saying that the system isn't purging the raw fuel vapors (hydrocarbons- HC) as well as it should.

P0446- Evaporative emissions system- Control valve circuit low- there is a valve, usually located on the charcoal canister at the rear of the vehicle, that opens to allow fresh air to enter the evaporative emissions system as the engine vacuum purges the fuel vapors from the charcoal canister and closes when purge is not needed to prevent leakage of those fuel vapors to the atmosphere (HC is a greenhouse gas and is regulated as such by the fed gov't).

Given that you have the incorrect purge flow code and the control valve code together, my bet is that the vent control valve has failed (causing the P0446) and is not opening to allow fresh air into the system to displace the air from within the system that is being pulled to the engine. Since you have no fresh air entering the system, the engine will pull a vacuum on the system instead of the vapors "flowing" into the engine (causing the P0441).


I hope that this is helpful to you!!!


ASE Master Technician with L1 and X1 Certifications; Nissan Scope Technician; Chrysler Level 3 Silver Technician- 12+ years experience.


Nov 17, 2008 | 2001 Toyota Corolla

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