Review on Denso 234 9006 Fuel Ratio Sensor by Mike Anderson

Purchased to replace the primary O2 sensor on a Honda K20A engine but the MIL on inspection showed trouble code P0135 (O2 Sensor Heater Circuit Failure, Bank 1, Sensor 1). Using a voltmeter, it turned out that the resistance of the heating circuit is too low at 1.7 ohms (should be more than 10 ohms). From the wiring harness side I get battery voltage (12 volts). Please note that the reason for the replacement was to fix error PO131 (O2 sensor circuit undervoltage, bank 1, sensor 1). I suspect the sensor is defective.