Quote:
Originally Posted by Diseasel300
The evap temp sensor is an NTC thermistor. If it is open-circuit, it will be infinite resistance and the PBU will think you're at -100000 degrees (maybe a bit exaggerated, but you get the jist).
The good news is that you've now proven the wiring all the way back to the PBU. "cycling" of the compressor is done based on the temperature of the evaporator. If the evap temperature sensor is screwed up or open-circuit, it can cause it, otherwise the PBU is probably toast.
|
So if the evap temperature sensor is screwed up or open-circuit it would make the BPU think its crazy hot and not shut off the compressor - correct?
In my case its not turning on the compressor.
Besides the sensor being open any other test or value I can check it for?
Plus - just took a quick look and can't find the part # to a new sensor.
__________________
---------------------------------
87 300SDL
87 190D 2.5NA 5sp
90 300GD with 606 turbo!
08 GL320 CDI
12 ML350 Bluetec
---------------------------------
Past rides:
82 300SD - the one that started it all!
81 240D
87 300SDL - the first one.
92 300D 2.5 Turbo
99 E300 Turbodiesel
07 E320 Bluetec
12 S350 Bluetec