I have a 2001 Ford Taurus Lx, it sputters and hesitates during acceleration?

I have a 2001 Ford Taurus Lx, it sputters and hesitates during acceleration! It doesn't go pass 25 mph but will reach 5 rpms! Changed spark plugs and wires! Also changed coil pack! Both converters are working properly! Check engine light is not on! Doesn't run hot! Tire pressure indicator comes on though! Not sure what my next step is! I need help!

See a mechanic with a scan tool. The car might be stuck in limp mode. You can try replacing any fuses and relays that concern the transmission. The cat converter might be clogged too.