IAT, CLT WIZARD PROBLEM

Omibi · Post by **Omibi** » Mon Apr 04, 2016 1:45 pm

Hi,
I'm trying to setup IAT and CLT sensors with the wizard but is not working. I open the calibration table, the IAT table for instance, open the wizard and set 3 operation points, for IAT I'm using the following values, 25ºC-->2000 ohm, 40ºC--> 1112 and 85ºc-->264 ohm, when I click ok in the wizard, the calibration table remains the same, every voltage values to 0ºC. What am I doing wrong?

Regards

flubyux2 · Post by **flubyux2** » Wed Apr 13, 2016 3:57 am

are you changing the very first line, [Predefined sensors] to "USER DEFINED"?

if not, that's probably why and its just reverting to whatever sensor is currently still selected

Post by **Jadzwin** » Thu Apr 14, 2016 12:11 am

I've tested your data and everything works ok.
However you should get wider sample points temperature range (eg. 0 C) and 100 C

Omibi · Post by **Omibi** » Sat Apr 16, 2016 6:37 pm

Are you sure jadzwin that it works with those values? I have being testing and I realised that keeping the second and third points as in the post ( 50º--> 1112 ohm, and 85º--> 264 ohm), if I set the first point to 20º, the wizard sets all values of the IAT table to zero for resistance values below 3200 ohm. If I set the temperature point to 25, the same thing happens to resistance values below 2700 ohm. I tested it with emu 1.163exp1 version both in xp32 sp3 and windows 10 64 home.

know that it is better to get a wider sample, but those are a very well measured points and I wanted to start with them.

Thanks.

Omibi · Post by **Omibi** » Tue May 03, 2016 3:40 pm

¿Has someone try the values above with the wizard? I'm still having problems. Another faulty set of values: 0ºC -->6046, 50ºC-->775, 100ºC-->176.

Post by **Jadzwin** » Thu May 05, 2016 4:06 pm

Hi!

What are OEM numbers of the sensor ?

The wizard required quite precise values to calculate the proper voltage curve. Probably those values are out of the NTC thermistor curve...

Omibi · Post by **Omibi** » Sat Jun 18, 2016 4:34 pm

The sensors I'm using are manufactures by FAE, water sensor is FAE 33010(BMW OEM 13 62 1 284 397), IAT is FAE 33165 (BMW OEM 13 62 1 725 323), and oil sensor is FAE 33155 (BMW OEM 13 62 1 433 076).

I used the wizard for the sensors. I measured the resistance of different temperatures and tried values with the wizard until I had three values that were working with the wizard. At the begining I thought it was working ok, but after the first race I think I'm having wrong readings. Where can I get the data for this sensors? The manufacturer has nothing on the web.

Thanks.

pric · Post by **pric** » Mon Jun 20, 2016 2:32 am

The sensors should be originally made by Bosch because BMW...
If another manufacturer makes a replacement they have to use the same ntc, otherwise the calibration is wrong.

as there's is not mutch to choose from:
Coolant: http://www.bosch-motorsport.com/media/c ... 739pdf.pdf
Intake Air: http://www.bosch-motorsport.com/media/c ... 379pdf.pdf

It should be the same ntc in both.

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IAT, CLT WIZARD PROBLEM

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