2002 Dodge Caravan emission codes

Tiny
JIMAL
  • MEMBER
  • 2002 DODGE CARAVAN
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 113,000 MILES
I failed a smog test and the code was po456 which I have seen relates to an evaporative system leak. I just got an oul change and they said I had a slight oil leak. Could this be the cause for the po456 code? Also on the smog test the only ECS test that I failed was "System Malfunction Light" I would appreciate any input.
Sunday, June 13th, 2010 AT 5:26 PM

3 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
P0456 EVAP Leak Monitor Small Leak Detected

Get the evaporative control system smoke tested-could be the fuel cap
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Sunday, June 13th, 2010 AT 5:40 PM
Tiny
JIMAL
  • MEMBER
  • 2 POSTS
Could an oil leak be related to this?
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Sunday, June 13th, 2010 AT 7:12 PM
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
No, -it has to do with gas vapors
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Sunday, June 13th, 2010 AT 11:43 PM

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