Why does your Nissan Pulsar q surge under accelleration?

A Nissan Pulsar may surge under acceleration due to several potential issues, including a malfunctioning mass air flow sensor, fuel delivery problems (such as a clogged fuel filter or failing fuel pump), or ignition system faults (like worn spark plugs or ignition coils). Additionally, vacuum leaks in the intake system can disrupt the air-fuel mixture, causing erratic acceleration. It's advisable to have the vehicle diagnosed by a professional mechanic to pinpoint the exact cause.