Switching to Lambda

[minytrker]

I twitched my turbo camaro over to straight methanol this year. I figured it would be easier to tune it using lambda. Do I need to just switch my widband over and log lambda pids?

[joecar]

Hi Lorenz,

Log the commanded eqivratio and the wideband lambda and eqr pids...

see the pid WO2BEN/CLC-00-110 in this file: calc_pids.txt (http://forum.efilive.com/attachment.php?attachmentid=13243&d=1337978026)

note that BEN = {GM.EQIVRATIO}*{EXT.WO2LAM1} = {GM.EQIVRATIO}/{EXT.WO2EQR1}

depending on what commanded eqr pid your ECM uses you may have to edit that pid


Also, set your tunetool to display fuel in EQR units.

[minytrker]

Do i need to change (B3601) on a 2002 Camaro since Im running straight methanol? Its stoichiometric ratio is 6.4 I think.

[joecar]

Yes, edit B3601.

[minytrker]

It wont go to 6.4

[joecar]

oh... I just remembered the minimum value for it is 10.00... you would have to scale the IFR to produce the required AFR.