My check engine is staying on I have a 2006 impala I changed the purge solenoid and the canister but it's still on what else could the problem be

no engine told and there are 3 answers. for 3 engines
replace it?
Evap
purge
3.4L

1. Disconnect the evaporative emission (EVAP) canister purge valve electrical connector.
2. Disconnect the EVAP canister purge pipe from the EVAP canister purge valve.
3. Disconnect the vacuum supply hose from the EVAP canister purge valve.
4. Remove the EVAP canister purge valve bolt.
5. Remove the EVAP canister purge valve from the intake manifold.

Have you changed your fuel cap? That is usually the culprit. If that doesn't solve your issue, a simple smoke test will show you where the system is leaking.

How To Install Evaporative Emissions Canister Purge Solenoid 2006 12 Chevy...


This video will show you where it is and how to replace

Repair your vehicle right away. Just click on the link I attach Best Manuals

Its what is called the EVAP. system the code is for the vent solenoid .Gas vapor in a vacuum is drawn from the fuel tank when this vent is commanded to be open drawn into a canister filled charcoal and stored until the canister purge solenoid is commanded to open .
This happens when the engine speed is at a higher RPM level and is supposed to send the vapor to the engine to be burned instead of VOC'S going into the atmosphere .But its a crazy lie the last time I filled up more VOCS got into the atmosphere then a gas tank vent could do in 6 month or so .
You can try cleaning the filter in the vent solenoid it might work but the part is about 70 dollars its in the rear between the tank and the canister look for hoses .

Here is a link for locating/replacing the canister purge solenoid on a 2006 Chevy Impala. I couldn't find a video for your Buick, but I suspect it may be located in the same area - near the fuel filler neck. How To Install Evaporative Emissions Canister Purge Solenoid 2006 12 Chevy...

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How To Install Replace Vapor Canister Purge Valve 3.4L ...

? 2:42
https://www.youtube.com/watch?v=IPKnoxJCIWk
Jul 9, 2014 - Uploaded by 1A Auto Parts
http://www.1aauto.com/vapor-canister-purge-solenoid/i/1aemx00137 In ... How To Install Replace PCV Valve3.4L 2000-07 Chevy Monte Carlo ...

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).

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.

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.