Connecting LC1 to V2

[LSs1Power]

I'm trying to connect the LC1 to my V2. I found the PIDs for the LC1 under F8 and added them (CAL.AFR_LC11 & LC12 in V & AFR units for both). I see them under F9, but for some reason I'm having hard time adding them in F10 layout B. How can i do this?

[LSs1Power]

Never mind... i figured it out.

[joecar]

You will get more accurate AFR/lambda if you use the serial/digital comms cable...

see TAQuickness's sig: showthread.php?8858-Tutorial-FlashScan-V2-Serial-Wideband-Logging

Doing it with the serial cable, the pids will be:
EXT.WO2AFR1
EXT.WO2LAM1
EXT.WO2EQR1
EXT.WO2ST1
CALC.BEN1

[LSs1Power]

You will get more accurate AFR/lambda if you use the serial/digital comms cable...

see TAQuickness's sig: showthread.php?8858-Tutorial-FlashScan-V2-Serial-Wideband-Logging

Doing it with the serial cable, the pids will be:
EXT.WO2AFR1
EXT.WO2LAM1
EXT.WO2EQR1
EXT.WO2ST1
CALC.BEN1

Thank you. I went looking for the connector to link to 2 male serial cables and i found it. I will try the pids you listed as soon as i finish installing the cam and springs.

[LSs1Power]

What is the difference between all these PIDs?

EXT.WO2AFR1
EXT.WO2LAM1
EXT.WO2EQR1
EXT.WO2ST1
CALC.BEN1

Feher
Regards,

[joecar]

WO2AFR is the wideband AFR (based on the stoichiometric AFR usually being 14.7).

WO2LAM is the wideband Lambda (is always 1 at stoich).

WO2EQR is the wideband Equivalence Ratio (is always 1 at stoich), defined to be 1/WO2LAM.

They are related as follows: AFR = 14.7 * LAM = 14.7 / EQR

Regardless of fuel used:
Stoich: LAM = 1
Richer: LAM < 1
Leaner: LAM > 1
EQR is the inverse of LAM.

Technically, the wideband measures Lambda and not AFR... so multiply Lambda by the stoich AFR of your fuel to get "measured" AFR.

Some widebands allow you to program in the stoich AFR.

[joecar]

WO2ST is the wideband state (lambda = measuring, O2 = sees free air, error = bad), gives an indication of what the wideband is doing.

[joecar]

CALC.BEN1 is the ben pid (wideband AFR divided by commanded AFR), this is the correction factor, use this in your BEN maps.

[joecar]

The GM PCM provides pids for commanded AFR (GM.AFR) and commanded EQR (GM.EQIVRATIO).

I defined my own ben pid as GM.EQIVRATIO/EXT.WO2EQR1 or GM.EQIVRATIO*EXT.WO2LAM1 to avoid multiplying by stoich AFR.

(can you see why those two are the same as each other...?)

For example:
- the LC-1 comes programmed with a stoich AFR of 14.7,
- my F-body tune file uses stoich AFR 14.63,
- someone else's Y-body uses stoich AFR 14.68,

It's easier and less error prone to avoid stoich AFR.

See CLC-00-010 in the attached file.

[joecar]

If you have two widebands serially connected (daisy chained), then you will use these pids also:

EXT.WO2AFR2
EXT.WO2LAM2
EXT.WO2EQR2
EXT.WO2ST2
CALC.BEN2