What is a misfire and what causes it?

An engine misfire happens when one or more cylinders fail to ignite the air-fuel mixture properly, causing the engine to run roughly and lose power. Common causes include worn or fouled spark plugs, failing ignition coils, clogged or leaking fuel injectors, vacuum leaks, low compression, or a faulty sensor. Misfires often trigger codes like P0300 for random misfires or P0301 through P0308 for specific cylinders. You may feel shaking, hesitation, and reduced power, and a flashing check engine light during a misfire means you should stop driving to protect the catalytic converter. A computerized diagnostic identifies which cylinder is affected and whether the cause is ignition, fuel, or mechanical. At Motoro Cars in Miami, our ASE-certified, AAA-approved technicians find the true source of a misfire. Call Wynwood at (786) 634-2002 or Doral at (786) 633-3220 to get it diagnosed and protect your engine.