Originally Posted by joncurry94

0420 did come back, 0430 has yet to show up. p0763 is gone and has yet to show up. I am pretty certain following the guide on how to fix the shift solenoid took care of my issue, the part wasn't faulty I checked for continuity. Shifts are so much smoother, too. And I am used to p0763 showing up immediately when i start the car, even after disconnecting the battery or clearing the code, it always comes right back, but it isn't now. How exactly can I determine if it is a bad cat?

Originally Posted by jaaa

Did you crawl under and check for leaks?