Cylinder Head Temperature Sensor, 0 280 130 017 Readings Options

[dlee6204]

I recently acquired a NOS temperature sensor for the one year only '73 Djet system 0 280 130 017. This sensor has been NLA for a very long time and finding a used one is very difficult. Given the rarity there isn't a lot of information on the proper resistance values of this sensor. Pbanders (https://members.rennlist.com/pbanders/DJetParts.htm) lists three data points for the resistance of this sensor but I thought I would post my findings. I also listed the values of the aftermarket sensor 0 280 130 012 available from 914Rubber.





@Superhawk996 This answers some of your concerns.

[nordfisch]

Hi,
sorry for replying later than supposed...

In the meantime I contacted Volker Huck from jetronic.org and asked him for values of the influence of the CHT resistance to the injection time.
He didn't measure it up to this time. Said he had to do it using the specific ECU-type because they all react different.
But he has the same opinion as we have - the difference between the sensors doesn't matter much because the engine head warms up rapidly in after a short time the sensors show almost the same values then.
He reminded me there are values for the ...017-sensor in the German workshop- manual published by Bosch...

I have to say the values from Bosch are meant without resistor and I tried to read out the values in my chart below from @Superhawk996 's graphic and from his chart.
Please notice the sensor data published by Bosch is at different temperatures for the different sensors.

I think, there is an error in the readings of the first 017 sensor <blue>.
Magnifying the graph, I can see a double line, too... think I corrected the error in my chart.




Regards
Norbert