Calc.VET: correcting MAF and calculating VE (in single log)

[ecir45]

You want to read through the summary notes, link is in first post of this thread.

http://forum.efilive.com/showthread....l=1#post174714

[joecar]

You can/should set B0120 to 400 rpm (or less).

The thing to note, is that since VE contributes during throttle transients, the transient filter can filter out VE contribution if the filter is sufficiently wide.

[joecar]

Updated post #1 to make it clearer.

[spy2520]

I thought that was the case, I did the procedure some time last year, and I was reading through this thread today and didn't see that so I got confused.

[ecir45]

spy2520, Thanks for bringing that up.

[joecar]

I'll add a mention of B0120 to post #1.

[joecar]

Updated post #1 again.

[spy2520]

Another question, can you disable trims and use just a wideband with this method? Or is there a more preferred way?

[joecar]

Another question, can you disable trims and use just a wideband with this method? Or is there a more preferred way?

Yes you can...

disable CL/LTFT/STFTOL (see B3801, B4205, B4206); if you have a COS then make sure that cells in B3647/B3749 are not stoich (EQR 1.00).

you will have to edit the calc_pids.txt file so that the the pid CALC.CL (CLC-00-032) is always zero:

i.e. edit this:

*CLC-00-032
factor             0             4         .0     "{GM.EQIVRATIO}=1"

to this:

*CLC-00-032
factor             0             4         .0     "0"

this will steer the pid CALC.SELBEN (CLC-00-220) to always select CALC.WO2BEN;

you then apply the maps as said in the Calc.VET thread.


Note: for Calc.VET you can also set B0120 to zero.

[spy2520]

Why would you not just use CALC.W02BEN instead of CALC.SELBEN?