crankshaft pos sensor

Hi and greetings as this is my first post. I have a 2000 GMC Jimmy/Envoy and it has 172200 miles. I just replaced the following, plugs,wires, cap&rotor 2 02 sensors, and when I go to heavy accelleration from a stop it sputters like cuts out,doesn't die but I have to back off the throttle to go...