False Air temp readings

[acca]

Hello
I have a Bosch 0281002680 Tmap sensor that gives overestimated temperature readings of approx 5°C

it is connected to a M600 ECU on A9 A15 B3 and B16 pins.

I chose Bosch 2500Ohm Predefined calibration and tried the calibration table given on this page : https://www.motec.com.au/products/TMAP%20Sensor

Both overestimate temperature.

I tried two different sensors (same reference).

I don't understand where is the problem

[Stephen Dean]

Normally the Bosch TMAP sensors all use the same Temp sensor, but it looks like this model may use a different sensor that I do not have a calibration for.

What are you using for a reference temperature?

[acca]

A ctn 2,2k with resistor bridge.