I have changed all the spark plugs and wires according to the manual and the firing order of the vehicle. I have no check engine light, but now when you accelerate over half way of the depression of the gas pedal the engine sputters or almost feels like it is powering down then goes back up, but continues to fluctuate, what could be wrong?
Sputtering or feel of powerdown during acceleration... on 2006 Chrysler Town & Country
Make sure all the electrical components (Plugs and harnesses) where you were working is connected, Sometimes when tuning a vehicle you can inadvertently bump a plug or harness or unplug a vacuum line and not know it. How was it running before the plugs and wires?
I have a 2007