Audi Part Number 035 919 369
Bosch Part Number 0280 130 037
0 Celsius >>> 5,68 Ohm
100 Celsius >>> 0,363 Ohm
15 Celsius >>> 2,82 Ohm
With default (?) firmware now with AREF=256 reading 7 deg more then real at temp...
Stock VAG Bosch with MAP sensor
Bosch Part Number 0281 002 401
Audi Part Nuumber 038 906 0516
0 Celsius >>> 5,93 Ohm
100 Celsius >>> 0,343 Ohm
15 Celsius >>> 3,05 Ohm
With default (?) firmware, now reading 7 deg more then real at temp...
,for this clt and iat config.
If I understand right (on phone), you've found and successfully tried ( from EasyTherm, hexpatch.exe vems.hex ... of 1.0.36 firmware ) best characteristic curve for your sensor and ECU.
Publish any measurements and best-so far curves.
- 3000_287 (?) for your ECM with AREF=287
- should be 3000_256 with v3.x (cloneinstall serial=337 ?) with AREF=256
I used hexpathc.exe from EasyTherm, it worked fine, then i uploaded the new firmware,and TADA,the IAT now reads only 2deg less then real.I used airden_3000_287
AREF is a resistor (bottom of BuildProcedures/SectionThree) that effects a few readings like battery, MAP, nernstdc and CLT/MAT temperatures (=> different calibration)