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Old 24 Sep 2003, 05:55 pm
Wilfred Smulders
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Default Primary oxygen sensor heater circuit malfunction

My check engine light of my 94 accord lx went on yesterday, so I flashed the
error code with a paperclip.
It appeared to be error 41, which says that the heater circuit of the oxygen
sensor is malfunctioning. I read that the heating is only used when the
motor is still cold, and otherwise doesn't have a function. Does this mean I
don't have to hurry replacing the oxygen sensor?
Does it give me a bad milage, even when I mainly drive long distances? Is it
hard to replace the oxygen sensor yourself?

Wilfred


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Old 27 Sep 2003, 05:41 am
Koji San
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Default Re: Primary oxygen sensor heater circuit malfunction

The O2 removal requires a one time use special socket tool. Sometimes the O2
gets stuck and other times it's a snap. Also depends on the location.

>Does this mean I don't have to hurry replacing the oxygen sensor?


Nope. Usually any emission open circuit causes the computer to go into fail
safe mode. In this mode you're driving around with a rich mixture which can
damage the O2 sensor and catalytic converter, if it's not already history.
Koji

>My check engine light of my 94 accord lx went on yesterday, so I flashed

the
>error code with a paperclip.
>It appeared to be error 41, which says that the heater circuit of the

oxygen
>sensor is malfunctioning. I read that the heating is only used when the
>motor is still cold, and otherwise doesn't have a function. Does this mean

I
>don't have to hurry replacing the oxygen sensor?
>Does it give me a bad milage, even when I mainly drive long distances? Is

it
>hard to replace the oxygen sensor yourself?
>
>Wilfred
>
>



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