Runs ruff changed mass air flow plug wires plugs

Check for vacuum leaks, check distributor cap and rotor button, clean or replace as necessary. Use quality injector cleaner.

This vehicle doesn't have a distributor cap. If you bought a parts house style plugwire make sure they are connecting properly. I've seen many of those not make correct contact with the coilpack. Also check your fuel filter and fuel pressure from the pump. If it runs rough at idle but not under accleration, could be something with Idle air circuit. Also check for engine codes, could even be an o2 sensor.