Pretty much anything
OBD1 And OBD2 chevy
OBD1 and OBD2 Dodge

so that pretty much entails cars from like 85- till present

Some OBD1 and all OBD2 fords

And pretty much everything else OBD2.

Every car is different on wat the ECU will acutally let me read. Hondas for really dont give a lot of sensor readings thru the ports, just the bare ones like o2 voltage, air temp, coolant temp, timing advance, RPM. vehicle speed, TPS

OBD2 chevys and a lot of fords it will tell you a lot, EGR sensors readings, what cylinders have misfired and how many times, a/c on or off, cruise control engaged, what gear the transmission is in, spark knock detected, fuel pump voltagem, battery voltage, and a slew of other stuff that is car dependant.

We can hook the scanner up to a laptop and it will graph the readings out believe, but we dont have the PC Link cable yet, cause we never really used for that. But we can read whats going jsut by looking at the scanner.

The onyl bad part about the scanner, it doesnt refresh very fast, but I dont know how the laptop link works though.