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NGK NS11A 8-Wire Probe Pin Assignments for Engines: DAF, Cummins - Vehicle Testing & Solutions

grzechu40 24153 9
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  • #1 16342652
    grzechu40
    Level 21  
    Hello
    Does any of your colleagues know the description of the wires in the NGK NS11A probe used in engines, e.g. DAF or CUMMINS? I mean how it can be checked on the vehicle without dismantling and what possibly breaks down in them, because the modules are operational, but the errors are from the reading from the probes. Instead of buying the whole set, which is very expensive, you could buy the probe itself, but how to check the probe before installing it?
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  • Helpful post
    #2 16354054
    Vaass
    Level 10  
    Tutaj znajdziesz opis przewodów w twojej sondzie
    https://www.ngk.de/en/products-technologies/l...nsor-technologies/special-sensors/nox-sensor/

    Co prawda jest to sonda NGK 6-przewodowa, a nie 8

    NGK NS11A 8-Wire Probe Pin Assignments for Engines: DAF, Cummins - Vehicle Testing & Solutions

    NTK NOx lambda sensors have six cable connections. The heating element is supplied with voltage through yellow and blue. The signal of the pump current flows through the white cable (Ip I (+)) and the green (IP II (+)) cable; the signal of the measurement cell (Vs+) flows through the grey cable. The black cable represents the earth connection for pump and measurement cells.
  • #3 16354358
    grzechu40
    Level 21  
    Thanks and for that, but I'll wait maybe someone has a schedule for the 8-wire.
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  • #4 17827640
    uhr
    Level 17  
    Anyone found an 8-wire wiring diagram?
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  • #5 17827668
    hubert04
    Level 25  
    It is not very profitable for Dafa, because the Chinese probe costs about PLN 1,000 each, and the original one costs PLN 1,350.
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  • #6 17866634
    bartex0
    Level 11  
    I can't help much, but 100% blue and black is a heater.
  • #7 18055249
    1991keda
    Level 15  
    Blue and black is a heater, mine is about 4.2 ?. When applying the voltage of 3 V, it draws about 0.6 A and the sensor heats up, but there was an error in the sensor heater in Dafa.

    Are the resistances and current draw correct? How to check the probe itself if the heater is working?
  • #9 19830367
    uhr
    Level 17  
    Anyone found an 8-pin layout?

Topic summary

The discussion revolves around the NGK NS11A 8-wire probe used in DAF and Cummins engines. A user inquires about the wire assignments and how to test the probe without disassembly, as they are experiencing errors despite operational modules. Responses include a reference to a 6-wire NGK probe's wiring, with specific mention of the heater connections (blue and black wires) and the importance of checking resistances and current draw to diagnose issues. There is a request for an 8-wire wiring diagram, with some users noting the high cost of replacement probes and discussing the feasibility of using cheaper alternatives.
Summary generated by the language model.
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