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2006 isuzu i-280 evap system problems

I replaced the purge valve and canister but light is back on, any answers would be very helpfull

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6ya6ya
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Posted on Jan 02, 2017

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SOURCE: I have a 2004 Avalanche, 49K mileage, code PO446,

That is an EVAP code. its a vent control code. you can manually test it by powering it up if you know where its at. i cant remember exaclty where its at off the top of my head but its only 2 wires. using a volt meter you want to make sure power is getting to it, but you cannot activate it without dealer scan tool.hmmm if you can figure out which is ground and power when you give it 12 volts it should click. meaning your vent solenoid works and you have wiring problems or its leaking.

EVAP problems are hard to finde with out scanners. you can change the vent solenoid and hope it fixes it. but a code points you to the direction of a problem. hopefull its not wiring problems. in the northern states with snow. ice can pull out wires and also get clogged in the vent solenoid and lock it up. its either wiring or bad or a leaking solenoid. check condition of wires. if they look good try a vent soleniod.

if that doesnt fix it after a engine light reset and 2 weeks or so. then goto dealer. you need to reset it after repair. light will not go off on its own.GOOD LUCK

Michael
ASE certified.
plz rate

Posted on Apr 29, 2009

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  • 979 Answers

SOURCE: service engine soon light is

How's that gas cap doing? It's part of the canister circuit and Will cause this code if the seal is leaking...accordianman

Posted on Jul 28, 2008

  • 275 Answers

SOURCE: 2004 Pontiac Grand Prix Evaporative Canister

you should be able to fix it look for a can near the fuel tank that has vacuum hoses coming out of it and you should be able to just buy the bad solenoid

Posted on Nov 03, 2008

savdragon
  • 37 Answers

SOURCE: Mustang GT 4.6 EVAP Canister Purge Valve Location?

You will need to remove the right front wheel & wheel well liner. The canister purge valve is behind the cover. It should have two tube going into the bottom and one on the side near the top.
You can fix it!
If this helps you out please rate me!
Brett

Posted on Mar 19, 2009

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

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1 Answer

How do I replace the purge valve on 2006 Yukon Denali


Replacing Vent Valve Solenoid Purge Valve Solenoid EVAP Valve 2005 GMC...

Remove the engine sight shield. Refer to Upper Intake Manifold Sight Shield Replacement . Remove the evaporative emission (EVAP) line from the canister purge solenoid, perform the following:
2.1.
Push the large size white retainer portion in.


2.2.
Push down, while pulling up slightly in order the disengage the tube.


Disconnect the EVAP canister purge solenoid electrical connector (1).
Remove the EVAP canister purge solenoid bolt (2). Remove the EVAP canister purge solenoid (3) and insulator (1).

Sep 19, 2015 | Cars & Trucks

1 Answer

My 06 cobalt has these codes can anyone tell me what they mean? Are they an expensive fix? p0446,p0455, p0172


code p0446 refers to evaporative emission (EVAP) system-vent control-circuit malfunction===causes --wiring--EVAP canister purge valve--ECM
code p0455 refers to EVAP system-large leak detected===causes --hose connections--intake leak--EVAP canister---EVap canister purge valve
code p0172 refers to system too rich, bank 1===causes intake blocked---EVAP canister purge valve--fuel pressure ---EGR system---injector/s ---ECM
because the EVAP purge valve appears in all codes I would be inclined to change that unit first the run the fault codes again

Jul 23, 2015 | 2006 Chevrolet Chevrolet Cobalt LT

1 Answer

I have a truck that popped up a P0443 code up and I've been trying to see what it is so I can get it fixed thank yo


P0443 - Evaporative Emission Control System Purge Control Valve Circuit Malfunction

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

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.

P0443 Information for specific makes: P0443 ACURA
P0443 CHRYSLER
P0443 DODGE
P0443 FORD
P0443 HONDA
P0443 INFINITI
P0443 ISUZU
P0443 JEEP
P0443 KIA
P0443 LAND-ROVER
P0443 LEXUS
P0443 MAZDA
P0443 MERCEDES-BENZ
P0443 MITSUBISHI
P0443 NISSAN
P0443 TOYOTA
P0443 Evaporative Emission Control System Purge Control Valve Circuit...

Jun 03, 2015 | Cars & Trucks

1 Answer

I am unable to locate the Vapor Canister Purge Valve on my 2006 Isuzu Ascender LS 6 Cyl. I have a hard code with the check engine light on and I am unable to reset the check engine light. I purchased the...


Hello had the same problem in my 2006 Isuzu I-280 I needed to
replace at this moment the Evaporative Valve Soleniod which is instaled next to the Vapor Canister. It is mounted on the frame behind the gas tank you will have to move the spare tire out of the way one bolt holds it in place this is where the canister is and the valve is mounted on the canister this is where it is mounted on my 2006 I-280. If you need to replace the solenoid and you can't find the original Isuzu part, you can ask for the 2006 Chevy Impala V-6 3.5 Purge Valve Solenoid. It is the same piece. The old Evaporative Vent Valve Solenoid has a number part PA-GF30, and it is the same part number I found in the new Chevy Impala Evaporative Vent Valve Solenoid.

Aug 08, 2013 | Cars & Trucks

2 Answers

I have a 2006 Isuzu Ascender with a 6 Cyl. 4.2L Engine and I need to locate the Vapor Canister Purge Valve. Any ideas where it is located. I have looked but am unable to locate it. Is it under a plastic...


Hello have a 2006 Isuzu I-280 and I needed to replace, at this moment, the Evaporative Valve Soleniod which is instaled next to the Vapor Canister. In my case, It is mounted on the frame behind the gas tank you will have to move the spare tire out of the way one bolt holds it in place, this is where the canister is and the valve is mounted on the canister this is where it is mounted on my 2006 I-280. If you need to replace the solenoid and you can't find the original Isuzu part, you can ask for the 2006 Chevy Impala V-6 3.5 Purge Valve Solenoid. It is the same piece. The old Evaporative Vent Valve Solenoid has a number part PA-GF30, and it is the same part number I found in the new Chevy Impala Evaporative Vent Valve Solenoid. Good luck.

Aug 08, 2013 | Cars & Trucks

1 Answer

P0496 code


Hi there:
DTC P0496 - EVAP (evaporative emission) Flow During A Non-Purge Condition


The P0496 DTC code is a generic code which applies to all vehicle makes. A quick search on the 'net shows that this code seems to be more common with GM (Chevy, Pontiac, etc.) vehicles. In Acura, Honda, Hyundai, Kia, and Mazda vehicles, this code is described "EVAP system high purge flow" which is the same thing.


This DTC checks for undesired intake vacuum flow to the EVAP system. The control module seals the EVAP system by commanding the EVAP canister purge solenoid valve OFF and the EVAP canister vent solenoid valve ON. The control module monitors the fuel tank pressure (FTP) sensor to determine if a vacuum is being drawn on the EVAP system

If vacuum in the EVAP system is more than a predetermined value within a predetermined time, this code is set and the MIL (malfunction indicator lamp) is illuminated.



Symptoms of a P0496 DTC will include MIL illumination, and most likely no other noticeable symptoms. Some may experience a hard start / crank condition. In some cases the engine may run rich which may not detected, but can cause damage long-term (think: catalytic converter damage).

Potential causes of a P0496 EVAP code include:

  • Faulty purge or vent solenod/valve
  • Plugged EVAP canister
  • Failed EVAP / fuel pressure sensor
  • Poor electrical connection
  • Short electrical circuit condition
  • (Hyundai, Isuzu)
  • Faulty canister purge valve
  • Blocked vapor canister
  • Faulty vent solenoid
  • Leaking EVAP system hose (Hyundai)
  • Faulty purge flow sensor (Kia, Mazda)

Possible Solutions

The most common fix for this DTC is to replace the purge solenoid valve. However, be sure to do a proper diagnosis before replacing parts!

Ideally you would use an advanced scan tool, with the ignition on and engine off, you seal the EVAP system using the Seal/Purge function. Then, watch the fuel tank pressure sensor reading when you turn the purge off. If the pressure value is higher than the normal range set by the manufacturer, replace the EVAP canister purge solenoid valve. Refer to a model-specific repair guide for the proper specification.


If you don't have access to the scan tool, you could always disconnect the vacuum line at the purge valve going back to the charcoal canister. Unplug the electrical connector on the purge valve, start the engine, then put your finger on the valve where you disconnected the line. If you can feel vacuum there, the purge solenoid valve is faulty and needs to be replaced. Alternately, you could simply remove the purge solenoid valve and blow into it. It is normally closed, so if air goes through then you need to replace it.


If the purge valve checks out good, either the problem with the valve is intermittent or there is a problem with the fuel tank pressure sensor. To test the fuel tank pressure sensor you will need to have a high end scan tool to monitor the tank pressure with the gas cap removed. If the sensor shows vacuum with the gas cap removed, there is a problem with the fuel tank pressure sensor.


Here is a picture of one purge solenoid valve. Yours may look similar or different, consult a factory service guide or your local vehicle dealership for more details.


Hope this helps; also keep in mind that your feedback is important and I`ll appreciate your time and consideration if you leave some testimonial comment about this answer.

Thank you for using FixYa, have a nice day.

Aug 22, 2012 | Cars & Trucks

2 Answers

I have a code P1447 Evap purge flow monitor on my 97 Pathfinder. What is and how do I correct this issue?


P1447 - Evaporative Emission (EVAP) Control System, Purge Flow Monitor
In this evaporative emission (EVAP) control system, purge flow occurs during non-closed throttle conditions. Purge volume is related to air intake volume. Under normal purge conditions (non-closed throttle), the EVAP canister purge volume control solenoid valve is open to admit purge flow. Purge flow exposes the EVAP control system pressure sensor to intake manifold vacuum.

Under normal conditions (non-closed throttle), sensor output voltage indicates if pressure drop and purge flow are adequate. If not, a fault is determined. Malfunction is detected when EVAP control system does not operate properly, EVAP control system has a leak between intake manifold and EVAP control system pressure sensor.

Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)

Possible causes
* EVAP canister purge volume control solenoid valve stuck closed
* EVAP control system pressure sensor and the circuit
* Loose, disconnected or improper connection of rubber tube
* Blocked rubber tube
* Cracked EVAP canister
* EVAP canister purge volume control solenoid valve circuit
* Closed throttle position switch
* Blocked purge port
* Closed throttle position switch


Test is and send us your updated.

Jan 14, 2011 | 1998 Nissan Pathfinder

2 Answers

P 2138 code with service engine soon light on?


Accelerator Pedal Position Error.

P2138 - Accelerator Pedal Position Sensor Circuit Range / Performance Problem

Clear the code - if it recurs, change the sensor.


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Sep 15, 2010 | 2006 Nissan Altima

1 Answer

I have a toyota matrix w/ 88,000 miles 2006. I have the check engine light on, took it to advance auto, codes are PO441- EVAP control system , purge flow-fault also PO455 EVAP system-large leak I don't...


P0441 Evaporative Emission Control System Incorrect Purge Flow
OBD-II Trouble Code Technical Description

Evaporative Emission Control System Incorrect Purge Flow
What does that mean?

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
THIS IS LIKELY FROM TOPPING OFF THE TANK EACH TIME YOU FUEL UP



P0455 is similar:

Technical Description

Evaporative Emission Control System Leak Detected (no purge flow or large leak)
What does that mean?

This indicates a fuel vapor leak or lack of purge flow in the EVAP control system. It means a large leak has been detected. 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.
Symptoms

You likely won't notice any drivability problems.
Causes

A code p0455 most likely means one or more of the following has happened:

* A loose or improperly affixed gas cap
* A non-conforming gas cap (i.e. not factory/original brand)
* Other leak or damaged piece in EVAP system

Possible Solutions

With a p0455, the most common repair is to:

* Remove and reinstall the gas cap, have AutoZone clear the codes, and drive for a day and see if the codes come back.
* Otherwise, replace the gas cap, and/or
* Inspect the EVAP system for cuts/holes in tubes/hoses (you may hear a vacuum noise or smell fuel), repair if necessary

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Sep 05, 2010 | 2006 Toyota Matrix

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