Need the link on how to build my own ALDL cable to hook to my laptop.(1990 5.7 TPI)

Thanks

 

http://www.moates.net/ look under software, I use the simple two transistor one.

 

So the simple 2 transistor cable works fine? I was gonna build the max 232 cable but if the 2 transistor will work fine with most cars all the better!!......also will the two transistor cable work with TBI's? or will I have to use my old single transistor?