Converting serial Lambda to AFR

[mr.prick]

Can we manually change the multiplier for serial Lambda 1 to AFR
or is that set in the WBO2?

[Mr. P.]

What WB are you using?

My guess is that the number is coming directly from the WB, and just being 'passed-though' the V2. I had the exact opposite problem, my WB reports AFR and I created a custom PID to display EQR from it, this is what I show on my dashpage now.

Mr. P.

[joecar]

V2 also provides serial EQR and serial Lambda (they are the inverse of each other) as queried from the wideband...

My understanding is that the wideband assumes stoich to be 14.7.

I pm'd Paul for more guidance (he's on holidays right now).

[mr.prick]

V2 also provides serial EQR and serial Lambda (they are the inverse of each other) as queried from the wideband...

My understanding is that the wideband assumes stoich to be 14.7.

I pm'd Paul for more guidance (he's on holidays right now).

This is what I figured.
IMO we should be able to set the AFR that L1 represents.
If I want to run E85 L1 will be 14.7 when it should be 9.7
Otherwise I'll just make a calc_pid off of serial Lambda.

[joecar]

I get EQR and/or Lambda from the wideband, and I factor stoich AFR later when viewing logs.

[mr.prick]

You mean add it or is there a way to change it?

[joecar]

I add it later as a calc pid (I use 14.63 as stoich, same as my B3601)...

or from a cheat sheet with a few AFR's printed on it...

I don't really use AFR much anymore.

[mr.prick]

That's what I figured.
TY

[Redline Motorsports]

I get EQR and/or Lambda from the wideband, and I factor stoich AFR later when viewing logs.

I do the same. took a while to succomb to lambda but I like it. Still look at AFR though at WOT just for a sanity check!

[mr.prick]

Yeah, but another thing I noticed is commanded AFR is not exactly what should be.
Stoich and PE are off slightly from what is in the tune.