I have a new and very basic install currently running in a VW beetle. I only have 2 temp sensors, one is the 1/8npt with the Deutsch connector, and the other is just a generic gm style. The numbers for temps I was seeing recently seemed a little odd, at least compared to what the ECU I just pulled out of the car used to say. I checked the calibrations and it looked like maybe I had the wrong ones selected. I found data for the 1/8 sensor and input that into the table for IAT, and then copied the data over to the CLT sensor as well.
After firing the car back up, I noticed that both sensors were showing the exact same temperature value. The voltage is different, but the temp showing in the datalog is identical. CLT is analog 9 and IAT is analog 10 both using 2k2 for bias. If I change the calibration on one of them, the temperature values shift, BUT the both update at exactly the same time and their curves are identical, just offset. I think it is the IAT nm value that is being reported.
Anyone else seen this? Running the latest firmware.
Running virtually all possible analog inputs on mine with latest software with no such effects.
Try and post here your Tools=> assigned inputs to confirm that nothing’s double assigned or something
(as an example of my pro8)
Here is a short log, in it you can watch the clt and iat running right on top of each other, but their voltages are definitely independent. Its got me good and confused.
That would definitely be helpful. One suggestion I have is to make it easier to input these values. As soon as I change that channel back to coolant, it blows up the values in the table. I can copy and paste the temperature values again, but the voltage values won’t transfer without hand doing every single one.
EDIT: Actually, I realized that I can hand do the voltage, then repaste the temp data and everything is fine. Still a pain, but half as bad as I thought.
We decided we will make two changes for the future release:
If the dimension count or axis channels differ when importing a table, a warning will be displayed, highlighting the differences, and an option will be provided to either load the table as is or cancel.
An option in the axis wizard to change only the channel, without modifying the cells.
This will provide the additional information necessary to understand the issue you had. The second change will enable easy axis channel swapping without modifying the table itself.
