is it possible a resistor o2 with obd0?

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Old Oct 25, 2018 | 01:51 AM
  #1  
ochumi's Avatar
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Default is it possible a resistor o2 with obd0?

Hi i want to ask you if itīs possible to connect a lambda with heater resistor and how it will connect

thanks
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Old Oct 25, 2018 | 10:14 AM
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Default Re: is it possible a resistor o2 with obd0?

sort of... not really.

You can hook the heater up to 12v and it will get hot, but that isn't how it operates with an ECU that is intended to have have a heated O2 sensor.
ECUs that have the 4 wire O2 not only power the heater, but also monitor the resistance of the heater circuit.
there is no temperature sensor in the O2 sensor, but the resistance of the heater circuit will change with temperature.
The ECU does constantly monitor this resistance and supplies power accordingly to maintain a consistent heater temp.
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