1997 Chrysler Intrepid Check EngineLlight

[Don Farrow]

I have had to get the Oxygen Sensor code reset twice on my 3.3 Intrepid .The
problem is that their is two Oxygen Sensors on the car how can to tell which
one is bad....One person told me not to worry about changing the sensor
unless I had to have a E Test

Is their any diagrams of where the Oxygen Sensors are located on the car....

Thanks

 

[Steve B.]

I have had to get the Oxygen Sensor code reset twice on my 3.3 Intrepid .The
problem is that their is two Oxygen Sensors on the car how can to tell which
one is bad....One person told me not to worry about changing the sensor
unless I had to have a E Test

Is their any diagrams of where the Oxygen Sensors are located on the car....

Thanks

Each sensor has its own codes. Find out what the code is and you know
what sensor is bad (or atleast where the problem is showing up). You
do want to get the problem resolved for better fuel economy.

Steve B.

 

[Neil Nelson]

I have had to get the Oxygen Sensor code reset twice on my 3.3 Intrepid .

Resetting the code does little to correct the original fault that
caused the light to illuminate to begin with.

The problem is that their is two Oxygen Sensors on the car how can to tell which
one is bad....

Actually there are four oxygen sensors on your car; left
upstream, right upstream, left downstream, right downstream.
Identifying a faulty oxygen sensor requires code retrieval with a
compatible scan tool and/or circuit waveform examination with a
labscope.

One person told me not to worry about changing the sensor
unless I had to have a E Test

That would be a person that you shouldn't listen to anymore.
A shorted oxygen sensor can and will lead to over fueling of the
engine, flooding over of the sparkplugs and/or cylinder wall and
piston/ring damage from the raw gasoline washing the lubricant
off of the cylinder walls/out of the rings.
Then again, given the approach so far, the "oxygen sensor codes"
you mention could be caused by just about anything.

Is their any diagrams of where the Oxygen Sensors are located on the car....

Two will be in the exhaust (each side) between the engine and the
catalytic converters, two will be in the exhaust pipes after the
catalytic convertors.

FWIW, flicking the ignition on and off three times [to extract
codes] will be of absolutely zero use in locating the problem.
You're going to need the services of someone with the proper
equipment and the necessary training.

 

[Don Farrow]

What do you suggest.. What do you think would cause the oxygen code to show
up....If I change the sensors will that solve the problem..

Don

I have had to get the Oxygen Sensor code reset twice on my 3.3 Intrepid

..

Resetting the code does little to correct the original fault that
caused the light to illuminate to begin with.

The problem is that their is two Oxygen Sensors on the car how can to tell which
one is bad....

Actually there are four oxygen sensors on your car; left
upstream, right upstream, left downstream, right downstream.
Identifying a faulty oxygen sensor requires code retrieval with a
compatible scan tool and/or circuit waveform examination with a
labscope.

One person told me not to worry about changing the sensor
unless I had to have a E Test

That would be a person that you shouldn't listen to anymore.
A shorted oxygen sensor can and will lead to over fueling of the
engine, flooding over of the sparkplugs and/or cylinder wall and
piston/ring damage from the raw gasoline washing the lubricant
off of the cylinder walls/out of the rings.
Then again, given the approach so far, the "oxygen sensor codes"
you mention could be caused by just about anything.

Is their any diagrams of where the Oxygen Sensors are located on the

car....

Two will be in the exhaust (each side) between the engine and the
catalytic converters, two will be in the exhaust pipes after the
catalytic convertors.

FWIW, flicking the ignition on and off three times [to extract
codes] will be of absolutely zero use in locating the problem.
You're going to need the services of someone with the proper
equipment and the necessary training.

 

[Steve B.]

What do you suggest.. What do you think would cause the oxygen code to show
up....If I change the sensors will that solve the problem..

Don

I'm not Neil but I would suggest you find out what code you have
first. AutoZone will read them for free if you have their store in
your area. Replace the oxygen sensor that the code indicates is bad
and go from there if the problem isn't resolved.

Steve B.

 

[Neil Nelson]

What do you suggest..

Seek the services of someone with the proper equipment and the
necessary training.

What do you think would cause the oxygen code to show
up....

There are a multitude of oxygen sensor codes and a multitude of
problems that can cause them to set;
Opens, shorts, slow response time, lean, rich, cat-con efficiency
to name but a few.

If I change the sensors will that solve the problem..

That's like asking a doctor if removing your tonsils will cure
your sore throat.

Finding the cause of the problem and correcting it will solve the
problem. The first step in finding the cause is to extract the
manufacturer specific trouble codes from the PCM.