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Po443 code I am getting the po443 code.I put a new purge valve in and that did not solve the problem.Check engine light came back on.I then changed the six inch hose that leads to the control valve.No help.Don't know what to do next.

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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ilragatzzo78
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SOURCE: check engine light

DESCRIPTION
A restricted or blocked evaporative emission (EVAP) vent path is detected by the control module monitoring the fuel tank pressure (FTP) during normal operation. The control module commands the EVAP vent valve OFF, or open, and the EVAP canister purge valve ON, or open. The fuel tank pressure should remain low as vacuum is drawn on the EVAP system. If the vent path is blocked or restricted, the vacuum level will increase and DTC P0446 will set.

DIAGNOSTIC AIDS
An intermittent Condition could be caused by a damaged EVAP vent housing, a temporary blockage at the EVAP vent valve inlet, or a pinched vent hose. A blockage in the vent system will also cause a poor fuel fill problem.

Posted on May 24, 2008

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  • 4 Answers

SOURCE: 2002 monte carlo EVAP problem continues.

did you try a vent solenoid? this is located behind left rear wheel in fender.

Posted on Nov 07, 2008

468 Chevelle
  • 81 Answers

SOURCE: Service engine code indicates EGR valve.

You could have a restriction in the egr ports. remove the valve. Plug the holes, start engine. 1 hole will be blowing out exhaust, the other will have large vacuum.

Posted on Mar 28, 2009

johnjohn2
  • 5763 Answers

SOURCE: I have a 2007 Equinox check engine light came on i

that car is under warranty for emmision failuare, it a federal law, also you changed wrong sensor poo36 and poo54 mean o2 sensor after the cat-converter is no good not the first one by engine, replace the one after cat and problem will be fixed. good luck.

Posted on Nov 05, 2009

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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2 Answers

I would like to know about code Po443 on my 2003 ford escape 3.OL I purchusad a new EGR Valve and A new solinide did i order the wrong parts?


P0443 FORD - EVAP Purge Control Circuit Possible 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 What does this mean? When is the code detected? - An improper voltage signal is sent to ECM through the valve. Possible symptoms Engine Light ON (or Service Engine Soon Warning Light) P0443 Ford 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 ECM. The longer the ON pulse, the greater the amount of fuel vapor that will flow through the valve.
Hope this helps

Read more:

Nov 07, 2017 | Ford Cars & Trucks

2 Answers

Replaced front and fuel tank evap solenoid still getting po443 code on 2011 chevy cruze what is a solution


Try a new gas cap, that is usually the culprit. Around $20 on up for keyed at any part store. And easy to put on.

Jan 03, 2015 | 2011 Chevrolet Cruze

1 Answer

Code po443


code p0443 refers to EVAP canister purge valve--circuit malfunction===causes --wiring---EVAP canister purge valve--ECM

code p0451 refers to EVAP pressure sensor --range/performance problem===causes --EVAP pressure sensor

code p0135 refers to heated oxygen sensor(HO2S) 1 bank 1 heater control --circuit malfunction===causes --fuse--wiring--HO2S ---ecm

basically the HO2S sensor is not stable and altering the air/fuel mixture settings for the ECM and this is not being helped by a faulty EVAP purge valve and pressure sensor.

Aug 24, 2014 | Ford F-150 Cars & Trucks

1 Answer

Does the purge valve keep the engine from starting?


You got the code

You can google the code to learn about it

Type: OBD PO443

The internet will explain the valves function & location,etc

The fact you have a code don't mean the part is bad

It may well be,but the evap system has to be tested & the
valve component tested & fail to need replacement

Nothing to do with starting

It opens to pull fuel tank fumes into the engine & burn them
based on computer strategy

If it is stuck open then you get unmetered air into the motor &
it can effect your fuel trim & cylinder firing

May 14, 2014 | 2004 Buick Rendezvous

1 Answer

Failed smog test Code PO443 ck. engine light on


This is the generic definition for the code.
Your year and model may be different. Possible causes include a faulty purge control valve or the circuit back to the computer.

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.
Read more: http://engine-codes.com/p0443.html#ixzz27RdAClP2

Sep 24, 2012 | 2000 Pontiac Montana

2 Answers

2002 GMC Z-71 Check Engine Light codes????


Off hand, it's by your oil fill tube on top off motor.

Mar 30, 2010 | 1999 Chevrolet Silverado 1500

3 Answers

Po443 code


po 443 bad evap purge vavle.

Oct 27, 2009 | 2000 Cadillac DeVille

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

1 Answer

Check Engine Light


with the purge valve powered up vacuum should flow through it. the purge flow sensors can go bad on these (between engine and purge valve)

Aug 12, 2008 | 1995 Ford Ranger Supercab

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