Hi guys, my wife brought her car from Texas to CA and her registration is up soon, so we have to get it smog tested. Her CEL has been on for a while and i just got into messing with cars so i'm going to try to see what I can do myself. I got a VEEPEAK OBD2 adapter and read the codes it was throwing, but haven't cleared them.
Do i need to reset the CEL codes and see what shows up to get an accurate/recent reading?

2003 IS300, ~125k miles

 

Wouldn't hurt.

 

Keep record of what it showed you the first time!

 

Awesome, I’ll give it a shot. And I do have them stored. Thank you!