Why does it miss fire when i excelerate

Hello, misfiring or poor engine performance occurs when there's some kind of fuel delivery or ignition spark issue at the engine. I would suspect something in the ignition or secondary ignition system is an issue - such as spark plugs or coils. Hands on inspection is needed, a diagnostic tool capable of evaluating the performance of the various systems is needed. Use this link to find some shops near you that can help with your concern: www.repairpal.com/repair-shops