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What to do for a po446 code - Cars & Trucks

Posted / edited by AnonymousUser on : 15-01-2018

Answers :

Hi there:
DTC P0446 - Evaporative Emmission Control System Vent Control Circuit

A code P0446 could mean one or more of the following has happened:
- Faulty vent valve
- Open, short or excessive resistance on Vent valve control circuit
- Blockage of vent valve
- Bad PCM

About the possible solutions with this trouble code, here are some things to try:
- Replace Vent valve
- Repair open, short, or resistance problem in control circuit
- Repair open, or short, or resistance problem in power circuit
- Replace PCM

Additionally, I suggest to check this information in the LINK.

Hope this helps.
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