Ive been finishing up a definition for my B6 S4 and im at the KFNW and KFNWWL or (AVCS/VVT) tables. According to some great definition work on the Mbox and yet more... and more... reading im very close. It seems the majority of the scaling that happens on the b5 s4 go pretty close to B6 S4.

Question i have is the conversion from the mbox is (x*.007813) (8bit) but in my rom it seems to be 16bit lo/hi (signed). So i end up getting an intake AVCS map that somewhat corresponds to what the logger is showing me.

Logging is showing me 27 KW at idle and when i go WOT it ranges to 30-50... which doesn't correspond to the table i have. Logger is taking a INT16 and scaling it by .00390625 which im sure is because its reported differently then its written in the ROM but im unsure.

Question is, What is the right thing here? I would like to work on the AVCS but not if

a) i dont have the scaling right
b) i cant make the logger look like my avcs table


Any confirmation on scaling would be great. Ignore the axis's on the screen shot but this is what i see. Warmup vs optimal

Hi aef,

Thanks for responding overnight for me. Those are my stock maps. When i grab the Mbox VVT map i can see its an on off scenario. but when i grab the B6S4 map i see a real AVCS table that has different values. Thing is im not sure if the B6 can go negative/positive Timing changes or if i just scaled it wrong.

Here are the sideby side B5/B6 maps. Thats why the question came up about this.

I have found that on some tunes people play with it and on some tunes they do not. My real question is how can i get confirmation on the scaling... Is there a document i can go read to pull out how KFNW works on a B6S4? I dont mind reading some more at this point.

Self Study Program on the BHF? I think i have that somewhere actually...

When i get the ecu file it shows that the offset from the raw value is degreeKW and the offset is .00390625  int16

I can rescale my maps real quick. i just cant recreate the WOT numbers this is showing...