What is the most common cause of P0303?
What is the most common cause of P0303? To ease your mind the most common cause of a misfire (the p0303 code) is a bad coil. Plugs rarely fail unless physically damaged (like missing electrode or cracked porcelain). A P0303 code indicates a misfire in cylinder 3, causing rough idle. Check spark plug condition and […]
What is the most common cause of P0303? Read Post »