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post #1 of 8 (permalink) Old 02-22-2014, 04:35 PM Thread Starter
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Advance Auto says I got a vent sensor problem with a 2006 2.2 L Cobalt I just bought. I don't know where it is. I am also smelling gas in the tail pipe. Any advice and / or help is greatly appreciated.
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post #2 of 8 (permalink) Old 02-22-2014, 06:53 PM
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An evap vent sensor? 0442 I think is the code

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post #3 of 8 (permalink) Old 02-23-2014, 06:43 AM
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Did AA tell you the code? If so...pls. post...

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post #4 of 8 (permalink) Old 02-23-2014, 07:19 AM
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No such thing as a vent sensor. But there is a fuel pressure sensor inside the evap canister.


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post #5 of 8 (permalink) Old 02-23-2014, 06:39 PM Thread Starter
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Did AA tell you the code? If so...pls. post...

They checked it but didn't tell me the code. I forgot to ask.

---------- Post added at 08:39 PM ---------- Previous post was at 08:35 PM ----------

Thanks, you guys helped a lot.
Would that also cause a gas smell to come from the exhaust? I check the fuel pump and spark plugs and had no problems. I didn't get the gas smell till after I replaced the worn gas cap.
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post #6 of 8 (permalink) Old 02-25-2014, 06:52 AM Thread Starter
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Quote:
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They checked it but didn't tell me the code. I forgot to ask.

---------- Post added at 08:39 PM ---------- Previous post was at 08:35 PM ----------

Thanks, you guys helped a lot.
Would that also cause a gas smell to come from the exhaust? I check the fuel pump and spark plugs and had no problems. I didn't get the gas smell till after I replaced the worn gas cap.
P0449 was the code
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post #7 of 8 (permalink) Old 02-25-2014, 07:01 AM
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That is the code for the evap canister vent solenoid. It is saying that you have a malfunction. One of the common occurence on these cars is rodents will chew the wires so maybe check for exposed or frayed wires at the vent solenoid. It is near the gas tank in the evap canister. Check that loom armour goes all the way to the connector like this one.



If the vent valve fails you will have a hard time filling your tank, because it will keep burping and shutting off the nozzle.


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post #8 of 8 (permalink) Old 02-25-2014, 07:06 AM Thread Starter
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Originally Posted by Coby7 View Post
That is the code for the evap canister vent solenoid. It is saying that you have a malfunction. One of the common occurence on these cars is rodents will chew the wires so maybe check for exposed or frayed wires at the vent solenoid. It is near the gas tank in the evap canister. Check that loom armour goes all the way to the connector like this one.



If the vent valve fails you will have a hard time filling your tank, because it will keep burping and shutting off the nozzle.

Thanks.
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