02 sensor problems

[Josh1254]

Im getting three codes for the o2 sensors. P0135,P0141, and P0155. The fuse in the box is good and I am getting power to all the sensors. I checked it with my multimeter. The codes are saying there is a fault or malfunction with all the sensors. Anyone have any ideas?

 

[Blee1099]

P0135 is HO2S Heater Circuit Bank 1 Sensor 1
P0141 is HO2S Heater Circuit Bank 1 Sensor 2
P0155 is Heated Oxygen Sensor Heater Circuit (bank 2, sensor 1)

I would start off by cleaning the MAF sensor, clearing the codes and see if they come back.. Not sure if you have the SOHC or the OHV but it could also be related to the 00M12 recall if you have the SOHC motor.

 

[Josh1254]

the maf was cleaned recently so I dont think I have a problem with it. I just changed out the injectors so could it possibly be related to anything I took apart while taking the upper intake off? I have the ohv engine

 

[Rhett]

the maf was cleaned recently so I dont think I have a problem with it. I just changed out the injectors so could it possibly be related to anything I took apart while taking the upper intake off? I have the ohv engine

How many years/miles on the sensors?

 

[Josh1254]

less than a year on the sensors