What causes 1999 protege flat spot during acceleration?

A flat spot during acceleration in a 1999 Mazda Protege can be caused by several factors, including a clogged fuel filter, a failing fuel pump, or issues with the ignition system such as worn spark plugs or ignition coils. Additionally, a malfunctioning mass air flow sensor (MAF) or a vacuum leak can disrupt the air-fuel mixture, leading to hesitation. Regular maintenance and diagnostics can help identify and resolve these issues for smoother acceleration.