2007 impala exceleration problems on 2007 Chevrolet Impala

have replaced cat converter and lower o2 sensor and plugs and wires and car still hesitates and spudders when i push gas

by in Port Saint Joe, FL on March 03, 2014
2 answers
ANSWER by on March 03, 2014
Do you have an SES light on? If so what are the codes?
ANSWER by on April 27, 2014
have u figured out what was your problem my car is doing the same?