O2 sensor problem

[homer311]

Just a quick question. Over the past 2 weeks i have had the service engine light come on with the Code P0135 3 times. The booklet says it is an O2 sensor heater circuit malfunction. Bank 1 sensor 1. I was just wondering as to the degree of concern i should have with this problem and what i could do to fix it.
Thanks

[ninobrn99]

fueling will be off, throttle response will be an issue. check the wires and make sure they arent burnt. you may also need to replace the sensor.

[homer311]

ok. i was expecting the possibility of replacing the sensor. If i replace the one that is malfunctioning, would i have to replace the other one as well?

[sunsetorangess]

No, Just replace the one thats giving you issues.
J

[0rion]

Do you have LT's? That's a common code with headers. Might want to look at Bosch 13111's. They are supposed to help this problem.

[ninobrn99]

supposed to, but dont always do it.

[homer311]

Nope no LTs. I live in california so long tubes are pretty much not an option for my car. But i have heard good things about bosch products. Have to check them out

[1970FLASH]

i've gone through three upstream bosche o2's in the past couple weeks. so i'd stay away. i'm going to try delphi one's.