Anyone have a P0449 code?
Thread Starter
Burning Brakes
Joined: Nov 2005
Posts: 980
Likes: 2
From: Paragould Arkansas
Anyone have a P0449 code?
P0449 Is a Evap Emission
Control system
VIV/Sol Malf
My gas cap looks good, anybody know what this could be. I have had the code cleared twice, and it comes right back. I hate this check engine light. My car has a maggie and is making 600 hp, I don't won't the guys at the dealer hot rodding my car. Believe me they would do it to. Thanks
Control system
VIV/Sol Malf
My gas cap looks good, anybody know what this could be. I have had the code cleared twice, and it comes right back. I hate this check engine light. My car has a maggie and is making 600 hp, I don't won't the guys at the dealer hot rodding my car. Believe me they would do it to. Thanks
Last edited by Z51 6spd; Apr 24, 2008 at 01:58 PM.
Racer
Joined: May 2006
Posts: 402
Likes: 3
No, not a gas cap for this code.
P0449
Ignition ON, engine OFF, command the EVAP vent solenoid ON and OFF with a scan tool.
Listen for a click when the valve operates. Verify that both the ON, and the OFF states are commanded.
Operate the vehicle within the Conditions for Running the DTC. You may also operate the vehicle within the conditions that you observed from the Freeze Frame/Failure Records data.
P0449
Ignition ON, engine OFF, command the EVAP vent solenoid ON and OFF with a scan tool.
Listen for a click when the valve operates. Verify that both the ON, and the OFF states are commanded.
Operate the vehicle within the Conditions for Running the DTC. You may also operate the vehicle within the conditions that you observed from the Freeze Frame/Failure Records data.
Melting Slicks
Joined: Sep 2007
Posts: 2,597
Likes: 3
From: READING PA
St. Jude Donor '08-'09-'10
OK guys, now there is two of you having a p0449 code. It happened to me immediatly after a catback install. Here is what I found. We know now that p0449 is a "evaporative cannister "VENT solenoid ". There is a plastic line that runs along the passenger side fuel rail area and down the back of the firewall. You cant see it from the top and you would have to look underneath along the passenger side firewall area. First go to the underhood fusebox to fuse #13. It is located around the center of the assy. Pull it out and check it to see if it is blown. That was my
problem. It also affects a few other things . It is a 25 amp fuse. If it is not bolwn check to see if 12 vdc is present at the SOLENOID CONNECTOR. If you have voltage then check the solenoid for open ckt.
If its open replace it. If the solenoid is good then the ecm is not providing the ground return and the problem is much deeper. Start with the fuse and see how it goes.
problem. It also affects a few other things . It is a 25 amp fuse. If it is not bolwn check to see if 12 vdc is present at the SOLENOID CONNECTOR. If you have voltage then check the solenoid for open ckt.
If its open replace it. If the solenoid is good then the ecm is not providing the ground return and the problem is much deeper. Start with the fuse and see how it goes.
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