explanations, etcBig question; do you want the $20 jobby from Amazon that just gives you codes or do you want the high end stuff (big $$$) that gives codes, explanations, etc?
Some of the bluetooth OBDII tools on Amazon (under $50) will give you the codes, but also give real time data on temp, rpm, volts, etc (as the computer interprets them) on an app on your smart phone.