My 1997 4.0 Cherokee Ltd. sometimes has a very
irregular idle speed and a similar drive problem.
This symptoms are occurring with days or weeks in between,
but sometimes appear a few times a day.
After a few minutes, the problems go away, and the car has
no problems at all. The engine starts easy. No other problems.
A computer check at the dealership has produced the following
error message:

Code 0132, Oxygen Sensor Shorted to Voltage

Do I have to replace the sensor, or is the problem somewhere
along the electric transmission between the sensor and the motor
management unit?
I am living in Asia, and parts have to be specially ordered and are
very expensive. I hate to have the sensor replaced, just to find,
that the problem is somewhere else.

Thanks for any input.

 

My 94YJ did the same thing. High O2 sensor voltage (Code21 OBDI). This
happened after a drive in through a deep creek. It shorted out the O2
sensor. If parts are that expensive there, I would start checking voltages
and looking for a short in the O2 sensor wiring.

I'm not sure if the 97 Cherokee models have an upstream and a down stream O2
sensors. If they do, make sure you check both.

chris





"Goldpalm" <goldpalm@usa.net> wrote in message
news:bgqqqg$i7j$1@news.loxinfo.co.th...
> My 1997 4.0 Cherokee Ltd. sometimes has a very
> irregular idle speed and a similar drive problem.
> This symptoms are occurring with days or weeks in between,
> but sometimes appear a few times a day.
> After a few minutes, the problems go away, and the car has
> no problems at all. The engine starts easy. No other problems.
> A computer check at the dealership has produced the following
> error message:
>
> Code 0132, Oxygen Sensor Shorted to Voltage
>
> Do I have to replace the sensor, or is the problem somewhere
> along the electric transmission between the sensor and the motor
> management unit?
> I am living in Asia, and parts have to be specially ordered and are
> very expensive. I hate to have the sensor replaced, just to find,
> that the problem is somewhere else.
>
> Thanks for any input.
>
>
>