Any real OBD-I scanner that has a 12 pin cable.
Thanks for the help!If you have a laptop, you can get a special cable that hooks dlc to usb port of laptop. Then you can download the trial version of DataMaster, good for 20 free scans. It not only scans for codes but does running data logs that can be played back in real time. Get cable at www.aldlcable.com or TunerCat DataMaster available to download at tunercat site.
If you get a cable, I can also send you a copy of the scan program called freescan. It's a pretty good program, it just doesn't have the data playback in real time like DataMaster does. But like the name implies, it's free for all time. Pm me with your e-mail address if you want freescan.