It is not wise to drive when your engine is misfiring because this could cause major harm. Misfires occur when one or more cylinders don’t ignite correctly, which causes rough acceleration, higher emissions, and rough running. Prolonged operation runs the risk of damaging the catalytic converter, reducing fuel efficiency, and possibly breaking the engine. Ineffective spark plugs, fuel injectors, ignition coils, and more serious problems such internal engine problems are common reasons. Some drivers may be tempted to buy used car parts in order to save money on repairs, but it’s important to identify the problem correctly. Fast correction of misfires can help avoid future, more costly repairs. If you must drive, wait for a trained mechanic to arrive and drive slowly and only short distances.