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Po443 fault Car misses occasionally when driving and po443 light comes on

Posted by Anonymous on

6 Suggested Answers

6ya6ya
  • 2 Answers

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

jmeyer847
  • 185 Answers

SOURCE: 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

Posted on Nov 15, 2008

ewashmidas
  • 362 Answers

SOURCE: I am getting codes PO440 PO443 PO 449 on my 2000

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.

Posted on Mar 06, 2009

  • 95 Answers

SOURCE: po443 code 2002 ford taurus

That code is for the Evaporative Emissions. It could be a bad Evaporative Emissions Canister Valve or just a bad vacuum line or my granddaughter's 1997 Ford Escort had that code and her gas cap was NOT on. Now when you figure out what one it is disconnect the battery for 10 minutes to reset the computer.

Posted on Jan 16, 2010

moparhart
  • 245 Answers

SOURCE: I have the code # po443

check the vacume lines

Posted on Jul 12, 2010

  • 1114 Answers

SOURCE: 1998 dodge neon PO443 Code...? my car died on me n

Helo this should help you out alot happy new year.regeetone_4.jpg

Posted on Jan 02, 2011

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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.

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Po443


P0443 - Evaporative Emission Control System Purge Control Valve Circuit Malfunction

Possible causes- Purge Control Valve harness is open or shorted
- Purge Control Valve circuit poor electrical connection
- Faulty Purge Control Valve


This fault will never cause a no start condition.

Sep 24, 2012 | 2000 Jaguar S-Type

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Po443 code 2002 ford taurus


That code is for the Evaporative Emissions. It could be a bad Evaporative Emissions Canister Valve or just a bad vacuum line or my granddaughter's 1997 Ford Escort had that code and her gas cap was NOT on. Now when you figure out what one it is disconnect the battery for 10 minutes to reset the computer.

Jan 16, 2010 | 2002 Ford Taurus

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2000 lesabre code po443


Evaporative emission control system purge control valve circuit. po443

Jul 07, 2009 | 2000 Buick LeSabre

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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

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