I have a ep3 2002 , 2 months ago I change both oxigen sensors ( brand new DENSO) a few days later the light goes on once again and this time have this code 67-01 please help me what can i do ?

 

Nobody

 

Do you have a catalytic converter? Code 67 means Catalyst efficiency below threshold.

So either replace the cat(expensive). Or try the defouler trick on the secondary O2 sensor.

Easy defouler -> http://www.kseriesparts.com/cr/VIB-11620.html

or you can get an 18mm spark plug defouler at autozone, for $5 but you have to drill it out to .5 inch first.

 

yes i have catalytic converter i will try with the defouler trick thanks !!!

 

How many miles on your cat?

 

i dont know i bougth the car 5 months ago

 

Its possible that this code remaind on if the car have a non oem genuine catalytic converter ??? i realize that the car have a short catalytic converter ...