My CEL poped up and shot 0702 and 0703

Three Way Catalyst (right bank)
Three Way Catalyst (Left bank)


What does this mean, i asume its the sensor in the cat....but i only see one?


-Chris

 

goto autozone. they'll scan it for free.. and tell you what you'll need.

 

You are getting this now because of what you told me you did. Should have kept it the way it was and got the straight pipe. But I can be wrong.

 

heres the description from the stickies, hope that helps:

0702
Diagnostic Trouble Code 0702 points to a problem with the three-way Catalytic Converter.

The Cat is one of the principal components of the emissions control system. The Engine Control Module monitors the signals from the two front Oxygen Sensors and the one rear Oxygen Sensor. The signal frequency of each sensor indicates something about the condition of that sensor. A comparison of the frequency of the front sensors with the rear sensor indicates something about the condition of the Cat.

This malfunction was detected when the ratio of the signal frequency from the right bank front Oxygen Sensor to the signal frequency of the rear Oxygen Sensor exceeded a critical threshold value. This indicates that the Cat does not have enough oxygen storage capacity. The right cylinder bank is also called the rear bank. It is cylinders 1,3,5. Possible causes of this DTC include ...
- Three-way catalyst
- Exhaust tube
- Intake air leaks
- Fuel injectors
- Spark plugs
- Ignition timing

0703
Diagnostic Trouble Code 0703 points to a problem with the three-way Catalytic Converter.

The Cat is one of the principal components of the emissions control system. The Engine Control Module monitors the signals from the two front Oxygen Sensors and the one rear Oxygen Sensor. The signal frequency of each sensor indicates something about the condition of that sensor. A comparison of the frequency of the front sensors with the rear sensor indicates something about the condition of the Cat.

This malfunction was detected when the ratio of the signal frequency from the left bank front Oxygen Sensor to the signal frequency of the rear Oxygen Sensor exceeded a critical threshold value. This indicates that the Cat does not have enough oxygen storage capacity. Possible causes include ...
- Three-way catalyst
- Exhaust tube
- Intake air leaks
- Fuel injectors
- Spark plugs
- Ignition timing

 

I work at pep boys and like finny said , the Michele said its from exhaust damage or leak....so i know what it is

Alex shhhhhh i just did it to see if it would help my motor problem....you know i plan on getting a high flow cat regardless.


-Chris

 

Yeah, okay.