I run a scan gage also, for clearing my stupid P0440 for the last 3.5 yrs. I also have an app called "torque". It is a real time monitoring system, get a blue tooth OBII reader on ebay for like 15 bucks, and voila, I can monitor all my vehicles without mocving the scangage and it shows all kinds of info, HP, temps whatever you want.
When a code pops up, click on it, auto goes to google search for real time checking, of course I would not recommend internet surfing while driving, but at least you can exit and check right away.