have a 96 sebring runs great cold soon as temp gets up sort of sputters kick it down it takes off it you just floor it it bogs down when in traffic on high way and i kick it down wife says blows smoke think black any ideas car has 145k plus email me at gmjm0786@aol.com if want

 

First stop, O2 sensor(s). Second, Fuel pressure. Third, air filter or airflow sensor.

 

Have to agree 02 sensor . Could be up stream or down stream sensor . Getting to much fuel.