check engine light came on after rough idle similar to water in fuel.new o2sx4 on 1996 Lincoln Town Car

new cat converter,throttle position sen,air filterand cleaned throttle body.car has power just a really rough idle to point I have to put in netrual.i use premium gas and put stp fuel conditioner in.no rich gas smell.could a throttle body get dirty that fast?does'nt explain check engine light.thanks for the last fix professor.please help

by in Glen Burnie, MD on July 07, 2014
0 answers