Trouble code po446 on my oontiac vibe nedd help engine light on
http://www.obd-codes.com/p0446 --- check this out
This trouble code is for the vent valve on the EVAP system charcoal canister. The vent valve is most likely bad. HTH. -Jim
1-Faulty vent - valve is most likely the problem located on the charcoal canister. 2-Open, short or excessive resistance on Vent valve control circuit 3-Blockage of vent valve 4-Bad PCM
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