Modifying OBD-II systems

[Bill Shaw]

And are these 'specialists' able to do much with them?  I know that GM
won't give up the source (over 1000 pages I hear) even to the specialists.
Faking out the sensors is MUCH more difficult with OBD-II, since each
sensor reading is independantly verified by some other method.  Are these
'specialists' bypassing the OBD-II requirements making the vehicles
non-compliant?  Or have they made the huge investment in reverse
engineering the code? Any ideas here would be appreciated.

bs

>>  What do the guys with new cars do when
>> they hot-rod them?  Stop participating in the program?
>
>Most so far have had to send them to folks that specialize in them.
>Bruce