Im 29 and live in Cali. I have a 2003 Acura with 109k miles on it. Im having difficulty getting the catalyst readiness flag to complete. The only time I was able to I pushed the car so hard I could smell the roten egg sulfur smell. Unfortunately it threw a check engine code and Ive replaced the throttle position sensor and thermostat since. No more check engine codes but have driven for hours and cant seem to get it open.

 

Hello Cody. I hope you're able to find the info you need to get this resolved. Welcome to Honda Tech.