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Po443 keeps coming on replaced egr valve and purge solenoid. still same problem

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  • Anonymous Mar 26, 2009

    jeep 2000 PO443

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5 Suggested Answers

  • 58 Answers

SOURCE: Check Engine code P1409

do you live in an are where the gas has alot of ethenhol? if so you might just have a build up of carbon in the exhaust tubes ie: egr return lines intake and all tubes.

Posted on May 20, 2009

  • 1 Answer

SOURCE: EGR VALVE ON 96 FORD PROBE SE

If it's a 2.0L, 5 speed (1994-7) there are two DPFE solenoids (both w/ 3 vacuum ports) near the oil filter, which control the EGR valve. They are discontinued and impossible to find except on junked cars. (FORD #'s K5T44093-4)
I have to junk my 1996 Probe if I don't find them - Missouri emissions.

Posted on Mar 03, 2010

taran_2005
  • 10515 Answers

SOURCE: 2001 montero sport looking for

Hi,

The P0403 code represents a problem with the Exhaust Gas Recirculation Solenoid or circuit.Below is the chart that explains and directs us to where the problem may exist.

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Since there are a number of components or wires that can be at fault for this code,I feel it is not going to be something that we should attempt to diagnose via long distance. You may wish to check the basic wiring and vacuum supply to the solenoid, but if you find that the ECM is at fault, you will want to have this type of problem backed up by a good part and labor warranty.
Most solenoids need about 20 ohms or slightly higher resistance on the primary winding circuits to function correctly.

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  1. Using the VACUUM HOSE ROUTING as a guide, check to be sure that the vacuum hoses are correctly connected.
  2. Check the connection condition of the vacuum hoses, (removed, loose, etc.) and check to be sure that there are no bends or damage.
Be sure to clear any trouble codes after you have made any repairs to the system.
Below is a technical service bulletin I have located on your vehicle, It may or may not be related to your current problem. I simply wanted you to have it.
TSB Revision: TSB-06-13-012
DATE: September, 2006
MODEL: See below

SUBJECT:
EGR SYSTEM TROUBLESHOOTING
- SERVICE MANUAL REVISION

PURPOSE
This bulletin contains additional troubleshooting procedures for the vacuum controlled EGR system on the affected vehicles.

Write the TSB revision number of this bulletin in the "TSB Revision" box at the bottom of the affected service manual pages.
AFFECTED VEHICLES
1995-1996 Mirage 1.5L and 1.8L (California emissions only)
1996 Mirage 1.5L and 1.8L (Federal emissions only)
1997-2002 Mirage 1.5L and 1.8L
2003-2006 Lancer 2.0L
2003-2006 Lancer Evolution
2003 Outlander
1996 Galant 2.4L
1997-1998 Galant 2.4L (Federal emissions only)
1999-2003 Galant 2.4L and 3.0L
1995-1999 Eclipse/Eclipse Spyder 420A and 2.0L Turbo
1996-1999 Eclipse/Eclipse Spyder 2.4L
2000-2005 Eclipse/Eclipse Spyder 2.4L and 3.0L
1996-1999 3000GT 3.0L
1996 Diamante 3.0L
1997-2004 Diamante 3.5L
1996 Montero 3.0L 12 valve
1996 Montero 3.0L 24 valve (Federal emissions only)
1996 Montero 3.5L
1997-2000 Montero 3.5L (Federal emissions only)
2001-2002 Montero 3.5L
1997-1999 Montero Sport 2.4L (Federal emissions only)
1997-1998 Montero Sport 3.0L (Federal emissions only)
1999-2003 Montero Sport 3.0L
1999-2004 Montero Sport 3.5L
1996 Truck 2.4L
1995 Expo/Expo LRV 1.8L and 2.4L (California emissions only)
1996 Expo/Expo LRV 1.8L and 2.4L (Federal emissions only)

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Let me know,if needed further assistance.

Hope i helped you.

Thanks for using ' Fixya ' and have a nice day!!

Posted on Sep 11, 2010

HD Road King
  • 70 Answers

SOURCE: 2006 gmc sierra 1500 4.3 . check engine light on.

More than likely the evaporator vent valve.

Posted on Sep 28, 2010

csmock132
  • 4669 Answers

SOURCE: getting an error code of PO449 for a check engine

You are right. You need the vent valve not the purge valve. The vent valve is a dealer item. Also this is a common problem and GM has released a bulletin on this that involves moving the location of the valve and running some new lines. It comes as a kit from GM, and it costs about a 100 bucks.

Posted on Dec 02, 2010

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1 Answer

I have 3 codes , po400, po443 & po135 have very low gas milage w/surging


PO135 is your EGR valve, P0400 = EGR Vacuum Leak, (EGR valve may need replacing, or may just have a hole somewhere in the EGR vacuum line ..
PO435 = Air Canister Purge. ( possible water in your air canister needs to be drained).

Jan 08, 2016 | Cars & Trucks

1 Answer

How to fix 05 buick rendevous po443 code?


p0443 is a EVAP code. The EVAP system deal with the vapor of your fuel tank. The definition of P0443 is EVAP purge valve circuit malfunction. The purge valve solenoid is locate on a support on the motor. There is 2 plastic hoses, one from the fuel tank and the other going to the trottle body. The most commun cause is a broken wire at the purge valve solenoid connector. The second most commun cause is the purge valve solenoid itself.

Sep 05, 2014 | Cars & Trucks

1 Answer

What code is po443


ossible causes
- Faulty Evaporative Emission (EVAP) Purge Solenoid Control
- Evaporative Emission (EVAP) Purge Solenoid Control harness is open or shorted
- Evaporative Emission (EVAP) Purge Solenoid Control circuit poor electrical connection
help.jpg What does this mean?
When is the code detected?
An improper voltage signal is sent to Engine Control Module (ECM) through the valve.
Possible symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
P0443 Description
The Evaporative Emission System (EVAP) canister purge volume control solenoid valve uses a ON/OFF duty to control the flow rate of fuel vapor from the EVAP canister. The EVAP canister purge volume control solenoid valve is moved by ON/OFF pulses from the Engine Control Module (ECM). The longer the ON pulse, the greater the amount of fuel vapor that will flow through the valve.

Jul 21, 2014 | 2000 Mercury Mountaineer

1 Answer

2009 pontiac g6 purge valve solenoid


code PO171 fuel trim system lean bank 1 conditions.possible causes air leaks in intake manifold exhaust pipes or exhaust manifold. fuel control sensor is out of calibration such as ECT IAT MAF.fuel component faulty like stopped up fuel filter fuel injectors clogged low fuel pressure faulty fuel pump. HO2S element contaminated or has failed. purge solenoid is part of EVAP system. if you have faulty purge solenoid you would get code like PO443 meaning evaporative emission control system purge control valve circuit malfunction.try replacing fuel filter clean fuel injectors see what happens.

Apr 04, 2013 | 2009 Pontiac G6

1 Answer

How do I fix fault code po443?


P0443 INFINITI - EVAP Canister Purge Volume Control Solenoid Valve

Possible causes- EVAP control system pressure sensor
- Damage harness or connectors to the Purge Control Valve
- The valve circuit is open or shorted
- EVAP canister purge volume control solenoid valve may be faulty (The valve is stuck open)
Tech notes It's a very common problem with Infiniti vehicles. If the harness is not damaged, it's very likely that the problem is the canister purge volume control solenoid valve.


Read more: http://engine-codes.com/p0443_infiniti.html#ixzz1yqKLq8YE

Jun 25, 2012 | Infiniti J30 Cars & Trucks

1 Answer

Repair 1997 ford taures purge control valve


Well there is no one thing that causes this fault code but here are what can trigger the fault in the fuel vapor control system.
P0443 FORD - EVAP Purge Control Circuit
Possible causes- Evaporative Emission (EVAP) Purge Solenoid Control harness is open or shorted
- Evaporative Emission (EVAP) Purge Solenoid Control circuit poor electrical connection
- Faulty Evaporative Emission (EVAP) Purge Solenoid Control

Apr 17, 2012 | 1997 Ford Taurus

3 Answers

Po443 code


po 443 bad evap purge vavle.

Oct 27, 2009 | 2000 Cadillac DeVille

1 Answer

I just bought a 1997 Mercury Sable it was a private sale. Once I got it home the check engine light was on can't remember the code but it when I looked it up it was the canister purge valve. Spent $80. for...


P0401 insufficient EGR flow.

Possible causes:
  • Fault in vacuum supply to EGR vacuum regulator solenoid.
  • EGR valve stuck closed or iced.
  • EGR valve diaphragm leaks.
  • EGR valve or flow path restricted.
  • EGR vacuum hose off, plugged or leaks.
  • VPWR circuit open to EGR Vacuum Regulator solenoid.
  • EVR circuit to PCM open.
  • EVR circuit to PCM shorted to PWR.
  • Differential Pressure Feedback EGR (D.P.F. EGR) sensor pressure hoses both connected improperly.
  • D.P.F. EGR sensor pressure hoses reversed.
  • D.P.F. EGR sensor VREF circuit open.
  • Downstream pressure hose off.
  • Downstream pressure hose plugged.
  • Damaged orifice tube assembly.
  • Damaged EGR Vacuum Regulator solenoid.
  • Damaged D.P.F. EGR sensor.
  • Damaged PCM.



P0443 indicates an intermittent EVAP canister purge valve circuit failure.
Possible causes:
  • Intermittent EVAP canister purge valve or VPWR circuit open.
  • Damaged EVAP canister purge valve.

Mar 13, 2009 | 1997 Mercury Sable

1 Answer

I am getting codes PO440 PO443 PO 449 on my 2000 Silverado and the SES light is on


PO440 Possible Causes:
Charcoal canister is loaded with fuel or moisture
Fuel filler cap is loose, cross-threaded, damaged or wrong part
Fuel tank, fuel filler neck or fuel sending unit 'O' ring is leaking
Fuel tank pressure sensor is damaged, disconnected or it failed
Fuel tank vapor line(s) is clogged, damaged or disconnected
Purge valve vapor line is clogged, damaged, or disconnected
Purge or vent solenoid power circuit is open (check the fuse)
PCM has failed

PO443:
Purge solenoid control circuit is open or shorted to ground
Purge solenoid control circuit is shorted to system power (B+)
Purge solenoid power circuit is open (test the ENG1 fuse)
Purge solenoid is damaged or has failed
PCM has failed

PO449:
Sames as PO443.

Hope this helps.

Mar 06, 2009 | 2000 Chevrolet Silverado 1500

2 Answers

Check engine light on , code po443 1998 sonata


To cause a P0443, there has to be a problem with the purge control CIRCUIT, not necessarily the valve. Usually they are a unit housing the valve and the solenoid as an assembly. Or it could be comprised of a separate solenoid with vacuum lines to a purge valve. That said, it could be any of the following:
  • Bad purge solenoid (internal short or open)
  • Wiring harness chafing or rubbing another component causing short or open on control circuit
  • Connector worn, broken or shorted due to water intrusion
  • Driver circuit inside powertrain control module (PCM) is bad
I would just clear out the code and if it returns then try the above. Hope this helps you a little bit!

Sincerely,

JC

Nov 15, 2008 | Hyundai Motor 1998 Sonata

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