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  1. D

    Need help with p0135 CEL

    I have tested pin-16 and voltage is coming out, at the required voltage.
  2. D

    Need help with p0135 CEL

    So ive tested pin-1 correct voltage is coming out, also found another missing white which is for pin-16 which is a white wire that is a incoming signal for the o2 sensor. I soldered a new wire to pin-16 and pin-1, then I went around to the engine bay with the wires and connected pin-1 wire to...
  3. D

    Need help with p0135 CEL

    Thanks for the reply. I did erase the code after replacing the sensor. I will retest my voltages tomorrow to make sure I am or am not getting 12v to my Primary O2 Sensor. It does read the temp because I saw on my diagnostic app on my phone it read the that the sensor had not yet reached its...
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    Need help with p0135 CEL

    Update: I narrowed it down to the PCM/ECM module, the connector 31p which is the blue connector is missing a black/white wire. I've looked up the pinout and the wire that is missing is for the PO2SHTC (Heated Oxygen Sensor). Seems like someone has been tinkering down here as well, I see some...
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    Need help with p0135 CEL

    Hey guys I have a 1999 Honda Accord LX ULEV F23A4 2.3L Automatic. I was getting a CEL for the code p0135, I did some research and found out it was for the o2 sensor, or Air/Fuel ratio sensor to be exact since my motor is the F23A4 model. I purchased a new sensor which is the Denso 234-9025 Air...
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