I wanna hook my laptop to my OBD2 connector

[undersc0re]

If you search ELM 327 USB on ebay I am sure you will be happy with this device. You can find them for between 120-150 dollars. Thay work on more than just your ALero so it will be useful for another vehicle. Also there is a lot of software for free out there that will show you real time info like a dashboard on your laptop and it will help you maybe diagnose a bad oxygen sensor etc...I will say though that this will not give you direct answers to a problem on your car but it will give you some clues and a good head start....Took me a while to find a bad fuel pump relay lol....I never knew it had a relay. That will teach me to use pressure washers in my engine bay!

[Kilroy]

Originally Posted by undersc0re

If you search ELM 327 USB on ebay I am sure you will be happy with this device. You can find them for between 120-150 dollars. Thay work on more than just your ALero so it will be useful for another vehicle. Also there is a lot of software for free out there that will show you real time info like a dashboard on your laptop and it will help you maybe diagnose a bad oxygen sensor etc...I will say though that this will not give you direct answers to a problem on your car but it will give you some clues and a good head start....Took me a while to find a bad fuel pump relay lol....I never knew it had a relay. That will teach me to use pressure washers in my engine bay!

Is it possible to calculate mileage with something like this if you have the right software??