I am looking at purchasing THIS . Another link. Of course I have no clue if it will do what I want. What does it tell me? Engine codes? Temperatures? Idle speeds? Does it help with ABS problems? Cruise control problems? I plan to do a couple EFI engine swaps into older vehicles and thought that something like this may be useful. I have one vehicle that just yesterday decided that it doesn't want to start, so maybe this will help me? Will it work on the following: 1989 C1500 5.7 TBI 1995 C1500 4.3 TBI 1996 K1500 5.7 1995 Ford Aerostar 4.0 1993 Explorer 4.0 1992 Tbird 5.0 and AODE 2000 Escort ZX2 I don't know anything about fuel injection but need to learn.