P0300 Chevrolet AutoCodes Q&A
P0300 Chevrolet AutoCodes Q&A . Check engine light fix2006 chevrolet silverado 1500code p0306 replaced spark plugsreplaced spark plug wires truck runs better 👍🏽better fuel mileage ⛽️ I changed the spark plugs with ac delco iridium,. Chevy misfires. P0302 YouTube from www.youtube.com Engine code p0306 could be caused by a number of things, including faulty spark plugs, faulty ignition system, distributor failure, and more. P0306 is certainly a cause for concern, and should be considered a threat. I got the diagnostics read and it gave code p0306 which is a cylinder 6 misfire.