i put in my air fuel ratio yesterday and then went to workn in my other car then i came home and was goin to drive my civic and saw i had no tail light and no parking lights.. i have light lights and brake lights just no running lights..whot could this be ?

 

Have you checked the fuses?

 

yup

 

What wires did you touch while doing the installation?

 

That's god smiting you for installing an A/F gauge into a car w/ a narrowband O2 sensor.