Should i need to change the O2 sensor? following is the reading of OBD scanner

Question

There are 2 msgs on OBD scanner on my Honda civic 2005-1.7l

PO135 1/2
oxygen sensor
heater bank 1
sensor 1
confirmed

PO135 1/2
oxygen sensor
heater bank 1
sensor 1
Pending.

CEL is on, so should i need to change the sensor 1?

Thanks

Answer 1

P0135 A/F sensor (Sensor 1) heater circuit malfunction

Check the fuse first, the heater circuit for the 02 sensor is fused and relay controled, in the engine fuse /relay box fuse listed as fuse 2. If the fuse is good you can try the relay. use the cover of the fuse box as a map for the location of the relay. If the relay check out good and the fuse is good, the only solution is replace the 02 sensor.

 P0135 is mostly set with a faulty 02 sensor internally . When the 02 sensor has lived out its most helpful life it usually set a heat circuit problem which is more internal of the 02 sensor.