Question Asked: p0300 and p0303 random multiple cylinder misfire, whats the most common causes?
August 19, 2011, 11:17 AM
it is only when i am idling at a stop, i have recently cleaned the mass air flow sensor and consistently run mid grade fuel as i was having problems with it running to lean. just recently ran risolone fuel system cleaner/lubricator through but normally use another brand. codes p0300 and p303 pop up when the diagnostic was ran.