Just replaced a oxygen sensor car now runs rough

Asked by Dec 25, 2013 at 09:11 PM about the 2004 Honda Civic DX

Question type: Maintenance & Repair

I replaced the oxygen sensor the code suggested it was a o2 sensor not heating in start
up. Now the vehicle runs rough, like it has a slight miss in the engine maybe a small lack
of fuel. Also when the cars starts fold it sounds like it has an exhaust lead, maybe a
catalytic converter problem?  Any suggestions ?

2 Answers


Do you have any more codes? Did the CEL go out after you replaced the O2 sensor? Sounds like you have an exhaust leak. You will get an O2 code when this happens, the sensor detects a problem, but it usually isn't the sensor, but another issue.

1 of 1 people found this helpful.

Thanks I did find an exhaust leak

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