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

There are 3 concepts mentioned here:

1. B3601 should be set to the actual stoich AFR of the fuel (as determined by the alcohol test kit).

2. The wideband AFR reported via analog voltage is equal to stoich*Lambda.

3. Set the tunetool to display fueling tables in EQ units or Lambda units, and forget about AFR units.

+1 nice collection of TA's :cheers:

Quote:

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Originally Posted by WeathermanShawn

25 degrees outside..You probably don't want to hear it will be 75F in Denver tomorrow..:grin:.

Frozen, normally B3601 will range from 14.124 (E10) to 14.63 (gasoline). In reality your NB's and WB all read Lambda anyway. What Joe was talking about was the 'Multiplier' used in many widebands to output AFR (i.e. stoich * Lambda).

My main point was in the Tune Tool under 'Edit..Properties..Commanded Fuel Properties', just 'click' EQ or Lambda. From there it is pretty easy to configure your wideband to read properly..usually just another calculated pid..

My advice is to 'unlearn' AFR and re-learn EQ or Lambda..:).

P.S..Nice assortment of TA's..Thats a fast time on that 98!

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75 degrees :damnit1:. Colorado is definatly a place I want to visit someday.

My properties page look exactly like that attachment. I've gone off those before. It is definately easier to watch, with 1.00 being perfect and .98 a tad rich but safe, plus I can do that math to figure out what my afr is. Haha.. Also that's what my VETAVE map shows.

I did do a in park log just to see if things are working while I had it outside alittle bit ago. Everything seem like it's reading good now. Except my CALC.AFR_DJ1 is locked on 10.00 afr
and CALC.AFR_DJ1 volts are locked on 0.0.
I'll read up later this evening on how to post my log and see what you guys think.

Thanks. That time for the 98 blackbird was a fat 150 shot it's got alot more left (I'm going up to a 250 shot this summer) if I can fine tune this NA tune for the pump gas. I have a dedicated fuel cell for the spray with 109 in it.
The red WS6 is 100% street crusier that has the stock tune in it. So after I get the blackbird done I'll do the red one.

When viewing B3605 or B3647, make sure you know when you're looking at Lambda vs EQ.

Is your DJ wideband connected to your V1 correctly...?

I just went and double checked my wiring. I've got my signal wire going to #C on the 3 wire block. My ground and signal ground going to #D and I've hooked up my 2 step box to #E. Following the efilive instructions on page 107. The DJ has a Y cable that one goes to the gauge and the other is 2 wires that go to the Black Box.
So I should be good there. I don't have a B3647 but my B3605 is in EQ. So I'll definately have to pay attention to that. :thumb_yello:

Pin #C sends the voltage signal to EXT.AD2 (see scantool user manual pdf)... this means you have to use CALC.AFR_DJ2.

( B3647 is the COS version of B3605 )

Or could I just switch those two wires on the orange block and be ok. Move my WB signal wire to #E and my 2 step to #C?

Yes, you could swap the wires between pins #C and #E.

Cool. I like that better because that will keep me close to the tutorial. That way when I refer back to it (and I will) I don't get myself lost. Haha