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Question:

Help Mercedes 2005 ML 350! Evaporative Emission Control System Code PO446?

Check engine light came on so I went and borrowed a diagnostic tool from the auto parts store, code PO446, which is evaporative emission control system. After running the test and got the code, I unplugged the battery check engine light came off and the light came on three days later again.I‘ve tried the gas cap. Bad gas wouldn‘t give the code PO446.

Answer:

natural foods spoil due to oxidation processes salt slows down these processes as well do the compounds in it like sodium phosphate etc. it keeps it fresh otherwise it would spoil quick
Additives do 2-3 things to our food. Preserve color,longevity,and in some cases,flavor(Mono sodium glutamate,ex. Accent). Although it is possible to store foods without these enhancement's, no one has been able to do it on a commercially volume basis.
evap leak, either a purge valve, bad canister, broken lines punctured tank etc take it to a shop

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