What are the best/most economical ODB-II scanner options? Isn't there a freeware program and then you can buy the adapter? I am ageek by nature with an aging car and would like to know what's going with the car, it's computer and be able to clear and diagnose some codes.
Not to mention I have one month left on my inspection, have a "check engine" light on and they won't let me on post with an overdue inspection.
I know that Harbor frieght has
these (linky thing).
Ebay has
these OBD 2 USB interface scan tool CAN ISO KWP PWM VPW J1939
There's even and
Iphone App