Question about 2004 Buick Rendezvous

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Does the purge valve keep the engine from starting?

I have a code of po443 and it said it was the purge valve.

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1 Answer

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

Posted on May 14, 2014

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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

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

Po443 p0443


The valve is mounted on the engine near the middle of the intake on most models.
Keep in mind the code is for a problem with the circuit which may or may not involve the actual valve. The valve and control would need to be tested.

Jul 29, 2013 | 1999 Oldsmobile Silhouette

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

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

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

3 Answers

Po443 code


po 443 bad evap purge vavle.

Oct 27, 2009 | 2000 Cadillac DeVille

2 Answers

Describe your 1996 Ford Explorer Problem..trouble


Diagnostic Trouble Code (DTC) P0443 indicates a failure in the EVAP canister purge valve circuit.
Possible causes:
  • VPWR circuit open.
  • EVAP canister purge valve circuit open.
  • EVAP canister purge valve circuit shorted to PWR GND.
  • EVAP canister purge valve circuit shorted to VPWR.
  • Damaged EVAP canister purge valve.
  • Damaged PCM.

Jul 10, 2009 | 1996 Ford Explorer

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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