Load calculation in vcds

[HMS-S6]

Yes. Very frustrating. If I could read the actual MAF figures to see if it was that area at fault or something else to do with load calculation it'd be a massive help but I cant.

[pasbogdan]

You wish a new vag car that shows maf and map in vcds,and looking at values solving a boost leak or a pre maf leak,or a bad maf,or a bad turbine or a stuck variable geometry?
Motronic could do that.But they do not show..

[HMS-S6]

Does anyone know also if in group 000 the third window normally stops climbing at 255. I believe this is the RPM % 10 figure.
In other groups my RPM continues to rise but NOT in group 000

[HMS-S6]

Is the reading in window 2 of group 000, is that g/s of the MAF?

[HMS-S6]

Can I read JUST the MAF reading on vag-com or is it just calculated load I can see?

Although I can't find an I5, I've come across many different VW/Audi readings with similar boost levels as stock and when shown as a percentage on display 003 (?) on VCDS mine is a million miles out. Most show 160-180%. Now I know an I5 will be different again but I'm pretty sure 111% is low!

[twoqu]

Rl?
Kfun?

That is Motronic speak!
Basically its LOAD = MAF/RPM I think.

[UrS4boy]

Posted a million times, but RL = KFUN(maf)/RPM
Whatever maths that is above!

This might not work for us but I found this while searching "Load KFUN(maf)/RPM":

"The formula for Load is basically the amount of incoming air, ratioed against how much 1 cylinder can hold at standard pressure/density. You can sort of think of Load as volumetric efficiency. The EEC uses the MAF to determine Load. It is a direct measurement of how much air is entering the engine. You might be wondering what the big deal about Load is. Well, since Load is used in the spark calculations, any change in Load will affect how much advance you get. Since the EEC uses the MAF to determine Load, any change in the MAF will change the Load calculation. Changes in the cam and anything that puts more air into the cylinders will also affect Load. Change the flow characteristics and you change Load."

REFERENCE: http://www.google.ca/url?sa=t&rct=j&...5VwPs5TYH27LrA

[HMS-S6]

Rl?
Kfun?

[twoqu]

Posted a million times, but RL = KFUN(maf)/RPM

Whatever maths that is above!

[HMS-S6]

I may be wrong but other than figures in fairly sure he's not said how it's calculated.
If I'm wrong I apologise.

[UrS4boy]

Does anyone on here know how the engine ECU calculates the LOAD figure? Is is TPS MAP and MAF figures or is in not that simple?

I am quite sure that dmitri has provided the general info on this before, perhaps even in your "timing" thread.

[twoqu]

MAF X RPM if I undestood it correctly!

[HMS-S6]

Does anyone on here know how the engine ECU calculates the LOAD figure?
Is is TPS MAP and MAF figures or is in not that simple?