Anyone know what things I need to connect a PDA to my 1995 EJ18? I don't want to pay someone else to diagnose these stupid problems I'm having. Here's the problem: put in clutch, turn key, car starts, revs go to about 1.5K, revs drop to (apparently) 0K then they majically jump up to 500ish (without the key turned). The car is experiencing kinda crappy performance and lower mpg than it should. I don't know if this is an electrical problem or something else but any help is appreciated.