Check Engine Light

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Glenn Brown

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Jan 8, 2002
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Ankeny, IA
I had this light show on the dash for a week! Finally went to the local Advance Auto Supply store and had them scan the code. Code is PO456

EVAP Emission Control System

Leak Very Small

No Faults detected.

So he reset this for me, so the check engine light is off.

Nothing to be done, but I was looking underneath and noticed that when the ST is idling, there is some moisure dripping from the exhaust pipe, like before the muffler, where the 2 pipes connect together.
 
If it is a small exhaust leak the system will not detect it...

I would look for the common vacuum elbow leak or Look in your drivers side rear wheel well, you will see a couple of hoses, make sure there all connected....

Todd Z
 
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