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Discussion Starter · #1 ·
I hooked up the programmer today to change a few things and it showed up with a engine code PO056 anyone know what the code means.
 

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Discussion Starter · #3 ·
ya that linked helped thanks.
 

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You're welcome!
 

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Only problem with this is that an o2 sensor code can be thrown by more than a bad o2 sensor. That could indicate an emissions vaccum leak as well. Cel codes are only a basis to begin diagnostic. That's why so many people get pissed off at autozoners when they buy part after a code reading and it doesn't fix the problem
 
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