can someone please tell me why my 99 buick regal gs tries to bog down when i press the gas pedal to the floor? i have replaced the fuel pump, fuel pressure regulator,and ignition module..
Do this check for scan codes, check the fuel pressure in PSI at the fuel rail and connect a vacuum gauge to direct intake vacuum at idle look for 18-21inHG Then you'll have a direction to begin diagnosing the issue(s) Engines are so simple.
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