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P0446 code

Tiny
ANGRYAPE
  • MEMBER
  • 2003 TOYOTA COROLLA
  • 4 CYL
  • 2WD
  • MANUAL
  • 98,000 MILES
Recently had this code come up. About six months ago, replaced the VSV valve, so I am guessing that is not it. Also, the engine seems to constantly revs high. I am wondering if this is a symptom of a defective EVAP purge valve? Or what is the most educated guess might be. Gas cap is fine.
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Monday, November 12th, 2018 AT 1:01 PM

1 Reply

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Good afternoon.

I attached possible failures for the 446. Do not discount the idea of the canister not being the issue. It is the most common fault for this issue.

As far as the high idle, there is no connection to the 446 code. I would start with cleaning the throttle body of all carbon deposits.

Roy

https://www.2carpros.com/articles/engine-idles-too-high

https://www.2carpros.com/articles/throttle-actuator-service
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Monday, November 12th, 2018 AT 2:47 PM

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