Reading lambda over USB/serial

Spartan 3
1

Hi,

I have a Spartan 3 + LSU 4.9 and I was wondering how could I retrieve the lambda value through serial on my computer.
It’s possible since it’s how it works on Torque Pro but I can’t find any informations about this topic.

Thanks!

2 Likes
2

send “GETDEFINITIONS” this will tell you info about the sensor data format. send “G” to get the sensor data.

3

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4

in the last part under “>G”
AFR = 50.0, Sensor Temperature = 780[C]

5

1… Does the setlamfivev only affect the linear output separate from the CANBUS output?
and
2 … Is the CANBUS output adjustable on the Spartan3 side?
or
3 … Would you just adjust the CANBUS data conversion through tunerstudio under Tools / “Calibrate AFR Table”?

6
  1. It only effects the linear output.
  2. Need more explanation, I do not understand the question
  3. CAN Bus data conversion is in the “CAN receiving” section of Tuner Studio. The “Calibrate AFR Table” is for using the analog inputs.
7

“2. 1. Need more explanation, I do not understand the question”

Can the CAN lambda output be configured, like the analog output is with setlamfivev and setlamzerov?

The question is much less important now that I know the setlamfivev & setlamzerov covers just the analog output.
The “calibrate AFR table” within tunerstudio will cover adjusting the CANbus data.