Author Topic: C6 evaporative emission control system vent valve  (Read 6804 times)

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Offline jagsy

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C6 evaporative emission control system vent valve
« on: March 25, 2019, 04:54:18 PM »
FYI
Had a engine code pop up over the weekend P0449 DTC which means that the evaporative emission control system vent valve could have failed.

Seems to be a common failure.

Ordered part (and additional wiring harness for new part!) so will see when it arrives.

I read the valve only operates at cold engine start up cycle and I can clear code once engine is warm.

Offline bfit

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Re: C6 evaporative emission control system vent valve
« Reply #1 on: March 25, 2019, 05:03:46 PM »
Jagsy 
Check your fuel cap is working correctly.
If you have a spare swap it over
Bfit
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Offline jagsy

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Re: C6 evaporative emission control system vent valve
« Reply #2 on: March 25, 2019, 06:49:21 PM »
Arh ok, will do, don’t have spare but willcheck it’s on properly

Offline jagsy

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Re: C6 evaporative emission control system vent valve
« Reply #3 on: March 25, 2019, 07:31:41 PM »
Ps Bfit, is there a way to test if fuel cap is working properly if I don’t have a spare?

Offline bfit

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Re: C6 evaporative emission control system vent valve
« Reply #4 on: March 25, 2019, 10:52:50 PM »
I’ll ring in the morning
I have seen too many instances where people continue to pursue wrong courses of action because they do not take the time to think critically about what has happened in the past.’’
Winston Churchill