Hey guys, I am trouble shooting a dead O2 sensor on my 98 7.4l. I swapped the original OE one with a bosch one and it is still showing that it is dead on the live data. I am getting bias voltage on B2S1. I verified that I have low resistance between the ECM connector and the O2 sensor connector and all wires ring out with less than .5 ohms of resistance. Are there any issues with using the bosch O2 sensors? Could this possibly be a bad ECM? Starts fine and runs a little rough and you can tell it is running rich. Thanks in advance.
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