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Posted on Feb 17, 2013
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Code po449 2009 cobalt

Code po449

1 Answer

Efrain Cortes

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  • Expert 298 Answers
  • Posted on Feb 17, 2013
Efrain Cortes
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Joined: Feb 05, 2013
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The PCM has determined that a malfunction exists in the electrical circuit for the vent valve/solenoid in the evaporative emission control system.

Definition:
EVAP (Evaporative Emission System) purge/vent solenoid circuit condition

Explanation:
The solenoids and system wiring are monitored for opens or shorts

Probable Causes
1- Purge or vent solenoids defective
2- Check connevtor and wiring
3- Fuel saturated vapor canister
4- Failed EVAP vent solenoid

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