Author Topic: C6 evaporative emission control system vent valve  (Read 1141 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, donít have spare but willcheck itís 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 donít 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 »
Iíll ring in the morning
Someone to claim us, someone to follow
Someone to shame us, some brave Apollo
Someone to fool us, someone like you
We want you, Big Brother
Big Brother!