Bests & Worsts Reviews from Amazon

I bought INNOVA 3100 about 2 weeks ago because my MIL (Malfunction Indicator Light) was on. Plugged it in after reading the manual. It said Oxygen Sensor Bank 1 Heater was bad. Called Mitsubishi dealer: Cost of part $317.43 plus 30 minutes of shop time. Looked up a replacement on internet at a cost of $37 plus $10 for a special socket to remove and replace. Another $7 for a Sears crimping tool and I replaced the part and saved over $228 plus I have the INNOVA to use over and over again. Some reviewers have said that they can't save reports in their computer. There is now a button on the INNOVA supplied program to "Save to File." This makes a test file of about 17 different test results. It is in .txt format and you can copy and paste it into a Word document if you want to dress up the format. Both the PC CD and the tool worked fine right out of the box. The unit comes with two cables: One to plug into the OBD2 socket under the dashboard of your car, and the other to plug into a USB socket on your PC. The INNOVA has built in memory to save readings obtained during a drive and then subsequently provide the data to your PC. I am VERY PLEASED to give this unit FIVE STARS.