When cold, engine run smooth. After 20 minutes, it misfire. Co emission reading jump to 2.3 percent. When i turn off and try to start the car, it back fire and barely [...] to wait intil it cold. No scan tool to support this year. Anyone ever come across t...

FIX posted 7/16/2019

iATN Members:
Login to view full TechHelp request
Auto Repair Pros:
Join iATN to read this TechHelp request
Vehicle Owners:
Find a nearby iATN member to repair your vehicle