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Eng. Code PO456

Tiny
MAILIBU1955
  • MEMBER
  • 2007 TOYOTA TACOMA
  • 37,000 MILES
2007 Toyota Tacoma v/6 auto trans. Eng. Trouble code Po456. Engine starts and runs perfect.37000 miles. Gas cap has been tested.
Friday, August 17th, 2012 AT 11:51 PM

2 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Any of the following could also be the cause:

A small leak in any of the EVAP hoses or fuel tank hoses
A small leak in the purge valve or vent valve
The EVAP Canister may be leaking

Have the Evap system smoke tested-
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Saturday, August 18th, 2012 AT 1:55 AM
Tiny
MAILIBU1955
  • MEMBER
  • 76 POSTS
Thanks, I'll check this out. Bob
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Saturday, August 18th, 2012 AT 7:02 PM

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