I got 2 on a '98 Accord, 3.0 V6. I replaced the 02 sensor and reset both codes. Could the 02 sensor trip the "EGR insufficient airflow" code (401 I think) or is that a separate issue ?

I drove the car about 5 miles and the light is out. Hoping that the 02 sensor solves the EGR issue as well.

thanks,
Bob

 

Which O2 sensor you repalced? I think there are 2 O2 sensors in a V6.
You need to drive at least 20 miles before the code will show up
again.

 

Take your car to the dealer (if your less than 100k miles) You car has a warranty extension on the EGR system. Also be sure you replaced the right O2 sensor.

 

I replaced the one before the CAT (bank 1)

 

Ah, it's got 150k on it. Do you know what they are doing to fix the problem by any chance ?

thanks,
Bob

 

Bob,

Thanks to Ross, I had my EGR valve replaced by a Honda dealer on a recall.
They also had to drill out the EGR clogged port.

Achng123