D Jetronic low to mid throttle surge

Hi Archie,

your wiring harness should not habe 10 Ohm resistance. You can measure directly from ECU connector to sensor connector. However from in to out can be different temeratures and that can effect your resistance.

Hi Volker, across pins 1 to 13 on the ECU connector measured 361oms at 18 degrees Celsius. I have a spare harness and sensor. I measured it at 352.

Hi TIm,

so then you measure 10 Ohm on 1 wiring harness from ECU connector to pin on sensor without ECU or sensor being connected?

Hi, the sensor and harness in the car measures 361 ohms, a spare harness and sensor measures 352 ohms at 18degrees Celsius.

Hello again!
What should the resistance of the temperature sensor be with the engine at operating temperature? If it's not ready correctly there perhaps it's telling the computer that the engine is still cold and running a rich mix?
I was watching a YouTube of a guy working on an XJ6. The sensor had gone and the engine running rich. When he bridged the sensor it tricked the computer and it ran properly.
Thanks Tim.

Edit, found your graphs!!!

Hi TIm,

I had already placed that link above: jetronic.org/en/d-jetronic/troubleshooting#Temperatursensoren :rtfm: