Ins and outs for MPG tunes

[bballer182]

Absolutely...

However, just to make this clear you said
"therefore simply turning up boost via vane position won't necessarily increase fuel consumption correct?"

You don't control the boost via the vane tables...

you control the boost via the boost table...

But yes... Fuel IS NOT referenced to the boost, it's the exact opposite. The boost is based on actual fuel delivery. not to be confused with desired fuel delivery.

[LBZoom]

Okay, it's all coming together for me now. Thanks for clearing that up, that will save me the trouble of adjusting the vane position tables when making a tune now. And yeah just like I thought and just as you say boost won't affect fueling, but glad we cleared it up for sure.

So the ECM only references the vane position table as a general guideline to achieve the stock desired boost in the boost tables? But once the desired boost tables have been increased than the vane positions will change and essentially the vane tables become irrelevant? The vane position tables will not hinder the turbo and stop me from achieving my desired boost then, that would've been my only concern.

So what can be gained from adjusting the vane tables? I'll check out dieselplace and see what they say about it there...