What does Code P0446 for 2000 Kia Sportage?

Answer 1

evaporative emmission control canister malfunction,or in english: the sensor that monitors pressure on the evap line is wrong.,usually the canister has raw gas in it causing problem.This is caused by over filling tank to where it almost runs out of fill tube,then you jump in and crank car, the raw fuel is sucked down the evap vapor line causing the canister to get raw fuel in it which in turn the sensor then reads the pressure wrong and you get a po446 code.Now if this is what has happened you must replace dthe evap canister and possibly the sensor too.The other thing that will cause this is a split or broken hose to the evap canister from the gas tank. You will have to trace hoses and inspect them thoroughly to see if one is cracked or half broken. hope this explanation helps you understand this problem.