there seem to be popping everywhere on ebay the blue chip with the red light that you hook up to the odb . It's supposed to do it all , the timing, ait, maf or map and oxygen sensor. Does any body got one of this in their vehicle and how is it working. The company that behind all of this is volo and I believe it the fs2 or something just type the word hho . I just or one for about 100 and it's on it's way, I will post back and tell how I do and I hope there's people out there that's already got one in their car and can tell me how they feel about it, Please and thank you.