my car sputters an hesitate to pick up its speed
Fuel pump might be going out
Might be but somebody told me it might be coil pack
Fuel pumps usually just go out. They don't usually give you a sign. It could deff be the coil pack especially if every time you try to go fast your check engine like keeps blinking and it sputter like catches for a min then let's catches for a min then let's go.
Have your OBD codes read at an AutoParts store for free. Most likely a coil, as Hotrod333 mentions especially if doing it under load.
If the car is vibrating when stationary, it could be the coil
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