AEM X-Series Wideband - Serial

[joecar]

Try swapping rx with tx.

rx/tx needs signal ground connected also.

[dr.mike]

I'm checking with AEM to see if they are using the newer firmware that does not have the serial code in it, to save space.

[Tre-Cool]

Try swapping rx with tx.

rx/tx needs signal ground connected also.

not in my experience. i just connect the tx pin to my patch cable

[joecar]

not in my experience. i just connect the tx pin to my patch cable

You don't have any explicit signal return path...?

[Tre-Cool]

my patch cable is for use with the alm widebands. so all i do is just put the blue wire from the aem into the rx pin for the v2 and it works. except for the latest aem firmware gauges where they don't appear to be transmitting at all.

[Gregs]

Today I wired up for analog voltages, I've given up on serial since I can't get it to work at all. It's been cold here in Iowa and working in an unheated garage isn't fun, finally getting around to working on this. I have the analog voltages working with BBX and I've modified the calc_pids.txt file for the correct equation for my sensor but can't figure out how to get the 0-5v signal to show up as my lambda/afr. I can't find the right PID.




calc_pids.txt
LS1B_0681.efi

[Tre-Cool]

Use these:

*CLC-00-119
factor 0.5 1.5 .3 "{CALC.AEM_AD3}/{GM.AFR}"

*CLC-00-120
factor 0.5 1.5 .3 "{CALC.AEM_AD4}/{GM.AFR}"

*CLC-00-2058
V 0.0 5.0 .1 "{EXT.AD3}"
AFR 10.0 20.0 .2 "{EXT.AD3}*2.3750+7.3125"
lambda 0.5 1.5 .3 "(0.1621*{EXT.AD3})+0.4990"

*CLC-00-2059
V 0.0 5.0 .1 "{EXT.AD4}"
AFR 10.0 20.0 .2 "{EXT.AD4}*2.3750+7.3125"
lambda 0.5 1.5 .3 "(0.1621*{EXT.AD4})+0.4990"

*CLC-00-2060
factor 0.5 1.5 .3 "({CALC.AEM_AD4}/14.7)*{SAE.LAMBDA}"


CALC.AFR-WO2BEN.AD3 F110 CLC-00-119 factor "W02-Ben" "AFR BEN AD3 AEM"
CALC.AFR-WO2BEN.AD4 F110 CLC-00-120 factor "W02-Ben" "AFR BEN AD4 AEM"
CALC.AEM_AD3 F001 CLC-00-2058 "AFR,lambda,V" WO2-Analog "Wide Band AEM AD3"
CALC.AEM_AD4 F001 CLC-00-2059 "AFR,lambda,V" WO2-Analog "Wide Band AEM AD4"
CALC.BEN.AEMAD4 F110 CLC-00-2060 factor "W02-Ben" "AD4 AEM BEN from Lambda"

The ben's are for LS1 & E38.

[joecar]

Today I wired up for analog voltages, I've given up on serial since I can't get it to work at all. It's been cold here in Iowa and working in an unheated garage isn't fun, finally getting around to working on this. I have the analog voltages working with BBX and I've modified the calc_pids.txt file for the correct equation for my sensor but can't figure out how to get the 0-5v signal to show up as my lambda/afr. I can't find the right PID.




calc_pids.txt
LS1B_0681.efi

Are you running LS1B or E38/E67...?



CALC.AEM.AFR
CALC.AEM.LAM

[Gregs]

Could I please get some help with syntax,

Why does this work:
V 0.0 5.0 .3 "{EXT.AD1}"
AFR 10.0 20.0 .3 "{EXT.AD1}*2.3750+7.3125"
LAM 0.5 1.5 .3 "(0.1621*{EXT.AD1})+0.4990"
EQR 0.5 1.5 .3 "1/((0.1621*{EXT.AD1})+0.4990)"

But this won't work:
V 0.0 5.0 .3 "{EXT.AD1}"
AFR 10.0 20.0 .3 "{EXT.AD1}*2.3750+7.3125"
LAM 0.5 1.5 .3 "{CALC.AEM.AFR}/14.7"
EQR 0.5 1.5 .3 "1/CALC.AEM.LAM"



#Code PRN SLOT Units System Description
#------------------------- ---- ------------ ---------------- ---------------- ------------------------------------------


CALC.AFR-WO2BEN.AD1 F110 CLC-00-119 factor "W02-Ben" "AFR BEN AEM"
CALC.AEM F001 CLC-00-2058 "V,AFR,LAM,EQR" WO2-Analog "Wide Band AEM"
CALC.BEN.AEMAD1 F110 CLC-00-2060 factor "W02-Ben" "AEM BEN from Lambda"

[joecar]

Today I wired up for analog voltages, I've given up on serial since I can't get it to work at all. It's been cold here in Iowa and working in an unheated garage isn't fun, finally getting around to working on this. I have the analog voltages working with BBX and I've modified the calc_pids.txt file for the correct equation for my sensor but can't figure out how to get the 0-5v signal to show up as my lambda/afr. I can't find the right PID.

calc_pids.txt
LS1B_0681.efi

Are you running LS1B or E38/E67...?

Your calc_pids.txt file is for E38, but your log file looks like LS1B.