Hi,

I drive a honda civic 96 model. This morning I was running very low on fuel and i put the car off while at a traffic light. The road was uphill. Now when I started my car again i got a check light on. I later pulled the code and what i got was cel code 41 which i believe could be any of the following:
41 P0135 Front HO2S Heater Circuit Fault (Sensor 1)
41 P1166 Primary HO2S (No. 1) Heater System Electrical
41 P1167 Primary HO2S (No. 1) Heater System

Question is, how to I go about fixing this problem?

Thanks in advance. By the way the car runs smoothly.

 

Code 41, Primary oxygen sensor heater

Start off by resetting your ECU, see if the code comes back. If it does, get a voltmeter.

 

I have reset the ecu and the cel still shows. I think I will get the voltmeter as you suggested and test the Ho2s for resistance right?

 

 

Thanks! I tested the sensor for resistance and nothing. I think the sensor has gone bad. Do they just go bad like that? Will be replacing the sensor later today. Will let you guys know how it goes. Again thanks a lot for the help!

 

Over time it can happen

 

Hi,

I replaced the HO2S with a new one and everything is back to normal. I said earlier that the car was running smoothly but after putting in a new HO2S I noticed that the car's performance improved. Before the replacement stepping on the gas pedal just made the car accelerate slowly but after the replacement the car is more responsive.

Thanks for all the assistance!!