2000 Grand Prix P0449 Evap Emission Control System

2000 PONTIAC GRAND PRIX
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CPUJOE
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Getting error code P0449 and poor gas mileage (down about 25%)

"EVAP Emission Control System Vent Vlv/Solenoid Malfunction"

Does that mean the solenoid is malfunctioning or it is just tripping the sensor? Where is this solenoid?

2000 Pontiac Grand Prix GT
~96,000
Automatic V6

No serious past engine history.

Can anyone help?

I donated. Thanks in advance.
May 22, 2007 at 12:32 PM
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2CARPRO JACK
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Vent solenoid....behind left side of rear fascia splash shield, behind wheel well
May 22, 2007 at 3:36 PM
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CPUJOE
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Ok, so do you think that the solenoid failed or that the sensor just went off and it's something else?
May 22, 2007 at 3:53 PM
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2CARPRO JACK
  • ✓ASE Certified Mechanic
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  • ASE Certified Mechanic
most likely the solenoid, if the valve is cheap id probably do it just for laughs.
May 22, 2007 at 5:14 PM
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