So my friend got an ultragauge for his tacoma and when he showed it to me, i was interested in it since it can read CEL codes, fuel consumption, rpms, engine temp., etc. My question is does anyone else have one? What are your opinions? Here's a link for those of you who haven't seen em and are interested..

http://www.ultra-gauge.com/ultragauge/

 

I have one and it has cleared a few codes for me over the years. It's very handy to have and recently clued me to a failing alternator. I also have it in a couple of other cars I own and has worked well for those as well. You can get along without one but if you want to read different values it's handy.