i just install a fuel ratio chip in my car . i had just installed a cai the day before my car was driving fine then today 2 day later the check engine light came on . any insights for cause of problem or ways 2 correct

 

First, jump the service connector and tell us what code you're throwing so we can help you.

 

yeah dummy,,,,,come prepare next time........

 

u asked questions cuz u don't know fyi !