It is quite common to find the wire had brushed up against part of the
exhaust and the insulation burned away causing a short or break in the wire.
If you find this it can be repaired.

Use wire of at least the same gauge, solder, and shrink-wrap the repair to
make it waterproof. Use plastic zip-ties to secure the wire and prevent a
repeat.

"DougW" <post.replies@invalid.address> wrote in message
news:560Tf.95007$bF.4485@dukeread07...
> McNick did pass the time by typing:
>> I have a problem, My check engine light came on on my '98 Jeep Grand
>> Cheorkee, so I had someone look at it and the computer reading was Bank 1
>> sensor 2, that was what it said, so I get that the second sensor is bad,
>> but where is it? Have any advice?
>
> The P code would help,
>
> Bank 1 Sensor 2 is the second downstream O2 sensor.
>
> Sensor 1 is on the downpipe just after the exhaust header.
> Sensor 2 is in the exhaust pipe just after the catalytic converter.
>
> I'd find the sensor connector, clean it, and reinstall.
> Also check the wires for burns from the exhaust system.
>
> (don't spray cleaner on the sensor or up the wire harness toward
> the sensor. very bad for the sensor.. very bad...)
>
> All else fails, replace the part. (
> $83 OEM (buymopar.com)
> $102 from the stealership.
>
> Napa has generic BSH 15729 for $60
> and OEM BSH 13138 for $78
>
> That's not a critical error. You can live with it for a while if you
> need to.
> Only the first sensor actually adjusts fuel trim, the second keeps an eye
> on
> the catalytic converter.
>
> --
> DougW
>

 

It is quite common to find the wire had brushed up against part of the
exhaust and the insulation burned away causing a short or break in the wire.
If you find this it can be repaired.

Use wire of at least the same gauge, solder, and shrink-wrap the repair to
make it waterproof. Use plastic zip-ties to secure the wire and prevent a
repeat.

"DougW" <post.replies@invalid.address> wrote in message
news:560Tf.95007$bF.4485@dukeread07...
> McNick did pass the time by typing:
>> I have a problem, My check engine light came on on my '98 Jeep Grand
>> Cheorkee, so I had someone look at it and the computer reading was Bank 1
>> sensor 2, that was what it said, so I get that the second sensor is bad,
>> but where is it? Have any advice?
>
> The P code would help,
>
> Bank 1 Sensor 2 is the second downstream O2 sensor.
>
> Sensor 1 is on the downpipe just after the exhaust header.
> Sensor 2 is in the exhaust pipe just after the catalytic converter.
>
> I'd find the sensor connector, clean it, and reinstall.
> Also check the wires for burns from the exhaust system.
>
> (don't spray cleaner on the sensor or up the wire harness toward
> the sensor. very bad for the sensor.. very bad...)
>
> All else fails, replace the part. (
> $83 OEM (buymopar.com)
> $102 from the stealership.
>
> Napa has generic BSH 15729 for $60
> and OEM BSH 13138 for $78
>
> That's not a critical error. You can live with it for a while if you
> need to.
> Only the first sensor actually adjusts fuel trim, the second keeps an eye
> on
> the catalytic converter.
>
> --
> DougW
>

 

It is quite common to find the wire had brushed up against part of the
exhaust and the insulation burned away causing a short or break in the wire.
If you find this it can be repaired.

Use wire of at least the same gauge, solder, and shrink-wrap the repair to
make it waterproof. Use plastic zip-ties to secure the wire and prevent a
repeat.

"DougW" <post.replies@invalid.address> wrote in message
news:560Tf.95007$bF.4485@dukeread07...
> McNick did pass the time by typing:
>> I have a problem, My check engine light came on on my '98 Jeep Grand
>> Cheorkee, so I had someone look at it and the computer reading was Bank 1
>> sensor 2, that was what it said, so I get that the second sensor is bad,
>> but where is it? Have any advice?
>
> The P code would help,
>
> Bank 1 Sensor 2 is the second downstream O2 sensor.
>
> Sensor 1 is on the downpipe just after the exhaust header.
> Sensor 2 is in the exhaust pipe just after the catalytic converter.
>
> I'd find the sensor connector, clean it, and reinstall.
> Also check the wires for burns from the exhaust system.
>
> (don't spray cleaner on the sensor or up the wire harness toward
> the sensor. very bad for the sensor.. very bad...)
>
> All else fails, replace the part. (
> $83 OEM (buymopar.com)
> $102 from the stealership.
>
> Napa has generic BSH 15729 for $60
> and OEM BSH 13138 for $78
>
> That's not a critical error. You can live with it for a while if you
> need to.
> Only the first sensor actually adjusts fuel trim, the second keeps an eye
> on
> the catalytic converter.
>
> --
> DougW
>

 

look at the engine from the front. the cylinder head that sticks out farther
is the cylinder that is cy>#1 that's bank one or the cylinder head thats
closest to the raditor is bank one sensor then count o2 sensors from there
and u will get sensor 2 as being the rear sensor on that bank on the exhaust

McNick wrote:

> I have a problem, My check engine light came on on my '98 Jeep Grand
> Cheorkee, so I had someone look at it and the computer reading was Bank 1
> sensor 2, that was what it said, so I get that the second sensor is bad,
> but where is it? Have any advice?

 

look at the engine from the front. the cylinder head that sticks out farther
is the cylinder that is cy>#1 that's bank one or the cylinder head thats
closest to the raditor is bank one sensor then count o2 sensors from there
and u will get sensor 2 as being the rear sensor on that bank on the exhaust

McNick wrote:

> I have a problem, My check engine light came on on my '98 Jeep Grand
> Cheorkee, so I had someone look at it and the computer reading was Bank 1
> sensor 2, that was what it said, so I get that the second sensor is bad,
> but where is it? Have any advice?

 

look at the engine from the front. the cylinder head that sticks out farther
is the cylinder that is cy>#1 that's bank one or the cylinder head thats
closest to the raditor is bank one sensor then count o2 sensors from there
and u will get sensor 2 as being the rear sensor on that bank on the exhaust

McNick wrote:

> I have a problem, My check engine light came on on my '98 Jeep Grand
> Cheorkee, so I had someone look at it and the computer reading was Bank 1
> sensor 2, that was what it said, so I get that the second sensor is bad,
> but where is it? Have any advice?

 

look at the engine from the front. the cylinder head that sticks out farther
is the cylinder that is cy>#1 that's bank one or the cylinder head thats
closest to the raditor is bank one sensor then count o2 sensors from there
and u will get sensor 2 as being the rear sensor on that bank on the exhaust

McNick wrote:

> I have a problem, My check engine light came on on my '98 Jeep Grand
> Cheorkee, so I had someone look at it and the computer reading was Bank 1
> sensor 2, that was what it said, so I get that the second sensor is bad,
> but where is it? Have any advice?