Evaporative Emission system Vent Control Circuit - CEL - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

MeritedSuperior · 03-26-2015, 04:12 PM

I have a CEL and got the trouble code P0446 on my ECU programmer. The code was just as the title says, something wrong with my EVAP system. It didn't specify what exactly was wrong. I looked all over the internet but never found anything that was specific for my car. A lot of the sites said it could be:

-faulty vent control valve
-blockage at the vent hose, vent filter, or vent valve
-open or short in the vent valve circuit
-EVAP system leak
-faulty EVAP system pressure sensor
-stuck open purge valve solenoid

But before I go buying and replacing parts that are perfectly fine I thought id check to see if any of you have had this problem and what yall did to fix it. And perhaps what caused it. TIA

TooCool5 · 03-27-2015, 10:17 AM

You need to take it to the dealer on warranty.

IrocJack · 03-28-2015, 06:13 AM

On going problem with these cars, check out a thread alot of us have been talking about it on here.
Evap vent solenoid not covered?

03-26-2015, 04:12 PM	#1
MeritedSuperior Drives: 2014 SS camaro Join Date: Aug 2014 Location: Anchorage Posts: 8 View My Garage	Evaporative Emission system Vent Control Circuit - CEL I have a CEL and got the trouble code P0446 on my ECU programmer. The code was just as the title says, something wrong with my EVAP system. It didn't specify what exactly was wrong. I looked all over the internet but never found anything that was specific for my car. A lot of the sites said it could be: -faulty vent control valve -blockage at the vent hose, vent filter, or vent valve -open or short in the vent valve circuit -EVAP system leak -faulty EVAP system pressure sensor -stuck open purge valve solenoid But before I go buying and replacing parts that are perfectly fine I thought id check to see if any of you have had this problem and what yall did to fix it. And perhaps what caused it. TIA

03-27-2015, 10:17 AM	#2
TooCool5 Drives: 2010 Camaro 1LS 3.6 LLT V6 325 HP Join Date: May 2009 Location: LS Posts: 4,242 View My Garage	You need to take it to the dealer on warranty. __________________ 2010 Camaro Auto, Inferno Orange, Titanium Interior, Gearhead Wheels AIRAID CAI

03-28-2015, 06:13 AM	#3
IrocJack Drives: 2010 2LT/RS RJT Join Date: Nov 2010 Location: Maryland Posts: 2,683 View My Garage	On going problem with these cars, check out a thread alot of us have been talking about it on here. Evap vent solenoid not covered?