My 93 k1500 with a 305 won't pass smog. It tests 5 points too high on hydrocarbons. I have replaced plugs, wires,cap,rotor and o2 sensor. Anyone have any ideas???? -- Message posted using http://www.talkaboutautos.com/group/alt.autos.4x4.chevy-trucks/ More information at http://www.talkaboutautos.com/faq.html
