Are there any computer modules for obd 2s, like the vemon 400, but I heard that it doesn't really work. Anything similar?

 

i dont think so, thats why they make an obd2 to obd1 coversion harness,otherwise you would not need to go backward. alll programs are written for obd1, if you conveert an obd2, it informs emissions computer of tampering and you fail.....

 

They do make EMS for obd2 vehicles. Expensive, but worth it if you are serious.

 

then that would be my bad...........