So just got my Toyocom device in the post, basically connects to OBD1 cars and give lots of info. I drive a 94.2 OBD1 FZJ80 with the 1FE-FZ engine. It plugs into you OBD1 port and then connects via Bluetooth to your Android phone app. Had a really rubbish Android phone in my man drawer so used that, although looking for a cheap Android tablet. Need to work our all the info it presents and especially around my O2 sensors etc. Can use the phones GPS to calculate certain additional info. Got it from a guy in Canada, he has a website search for zf-scantools, for lots more info.