Whats the main diff. between hondata and a v-afc? I have a 99 gs-r engine in my 92 hatch, and I was just wondering if thats an obdII or I, and if I would need a harness for hondata or what?

 

hondata is obd I. hondata has full control of almost all the car's functions, and unlimited points along the fuel/timing curve. it also have full partial throttle programming. ****, just look at hondata.com vafc is a piggyback and does a half *** job of controlling fuel and vtec, that is all.

 

the 99 gsr engine is obd-2. hondata is a more complete tuning aide than the vafc.