I just replaced it since the MIL code read 21 "upstream O2 sensor..." How
do I know if it fixed the problem or how do I reset the code?

--
Mel

96 Jeep Cherokee

 

Mel P. did pass the time by typing:
> I just replaced it since the MIL code read 21 "upstream O2 sensor..." How
> do I know if it fixed the problem or how do I reset the code?

The code should go away. You can reset by disconnecting the battery for a few minutes.

--
DougW

 

Mel P. did pass the time by typing:
> I just replaced it since the MIL code read 21 "upstream O2 sensor..." How
> do I know if it fixed the problem or how do I reset the code?

The code should go away. You can reset by disconnecting the battery for a few minutes.

--
DougW

 

Mel P. did pass the time by typing:
> I just replaced it since the MIL code read 21 "upstream O2 sensor..." How
> do I know if it fixed the problem or how do I reset the code?

The code should go away. You can reset by disconnecting the battery for a few minutes.

--
DougW

 

Here's a inexpensive code reader that will clear the codes. You can download
and read the pdf manual if you want.
http://www.harborfreight.com/cpi/cta...emnumber=46030

JoBo
"Mel P." <mpernice@netzero.com> wrote in message
news:2pnf6oFmiuukU1@uni-berlin.de...
> I just replaced it since the MIL code read 21 "upstream O2 sensor..." How
> do I know if it fixed the problem or how do I reset the code?
>
> --
> Mel
>
> 96 Jeep Cherokee
>
>

 

Here's a inexpensive code reader that will clear the codes. You can download
and read the pdf manual if you want.
http://www.harborfreight.com/cpi/cta...emnumber=46030

JoBo
"Mel P." <mpernice@netzero.com> wrote in message
news:2pnf6oFmiuukU1@uni-berlin.de...
> I just replaced it since the MIL code read 21 "upstream O2 sensor..." How
> do I know if it fixed the problem or how do I reset the code?
>
> --
> Mel
>
> 96 Jeep Cherokee
>
>

 

Here's a inexpensive code reader that will clear the codes. You can download
and read the pdf manual if you want.
http://www.harborfreight.com/cpi/cta...emnumber=46030

JoBo
"Mel P." <mpernice@netzero.com> wrote in message
news:2pnf6oFmiuukU1@uni-berlin.de...
> I just replaced it since the MIL code read 21 "upstream O2 sensor..." How
> do I know if it fixed the problem or how do I reset the code?
>
> --
> Mel
>
> 96 Jeep Cherokee
>
>

 

Clearing the codes consists of nothing more than disconnecting the battery
for 1-2 minutes.

Jerry
--
Jerry Bransford
PP-ASEL N6TAY
See the Geezer Jeep at
http://members.***.net/jerrypb/
"Jo Bo" <jromas@columbus.rr.com> wrote in message
news:ZXHZc.1$rS1.0@fe1.columbus.rr.com...
> Here's a inexpensive code reader that will clear the codes. You can
> download
> and read the pdf manual if you want.
> http://www.harborfreight.com/cpi/cta...emnumber=46030
>
> JoBo
> "Mel P." <mpernice@netzero.com> wrote in message
> news:2pnf6oFmiuukU1@uni-berlin.de...
>> I just replaced it since the MIL code read 21 "upstream O2 sensor..."
>> How
>> do I know if it fixed the problem or how do I reset the code?
>>
>> --
>> Mel
>>
>> 96 Jeep Cherokee
>>
>>
>
>

 

Clearing the codes consists of nothing more than disconnecting the battery
for 1-2 minutes.

Jerry
--
Jerry Bransford
PP-ASEL N6TAY
See the Geezer Jeep at
http://members.***.net/jerrypb/
"Jo Bo" <jromas@columbus.rr.com> wrote in message
news:ZXHZc.1$rS1.0@fe1.columbus.rr.com...
> Here's a inexpensive code reader that will clear the codes. You can
> download
> and read the pdf manual if you want.
> http://www.harborfreight.com/cpi/cta...emnumber=46030
>
> JoBo
> "Mel P." <mpernice@netzero.com> wrote in message
> news:2pnf6oFmiuukU1@uni-berlin.de...
>> I just replaced it since the MIL code read 21 "upstream O2 sensor..."
>> How
>> do I know if it fixed the problem or how do I reset the code?
>>
>> --
>> Mel
>>
>> 96 Jeep Cherokee
>>
>>
>
>

 

Clearing the codes consists of nothing more than disconnecting the battery
for 1-2 minutes.

Jerry
--
Jerry Bransford
PP-ASEL N6TAY
See the Geezer Jeep at
http://members.***.net/jerrypb/
"Jo Bo" <jromas@columbus.rr.com> wrote in message
news:ZXHZc.1$rS1.0@fe1.columbus.rr.com...
> Here's a inexpensive code reader that will clear the codes. You can
> download
> and read the pdf manual if you want.
> http://www.harborfreight.com/cpi/cta...emnumber=46030
>
> JoBo
> "Mel P." <mpernice@netzero.com> wrote in message
> news:2pnf6oFmiuukU1@uni-berlin.de...
>> I just replaced it since the MIL code read 21 "upstream O2 sensor..."
>> How
>> do I know if it fixed the problem or how do I reset the code?
>>
>> --
>> Mel
>>
>> 96 Jeep Cherokee
>>
>>
>
>