8th Generation Honda Civic Forum - View Single Post - Problem with O2 sensor using defouler
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Old 07-03-2009, 06:06 PM   #1 (permalink)
yoefg08
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Join Date: Sep 2008
Posts: 38
Unhappy Problem with O2 sensor using defouler

Hi,
I have 08 siand I just made the installation of my vibrant w/hfc header with strup defouler yesterday. Everything goes right but today the check engine came out. I went to autozone and after put the car code reader, the problem was the O2 sensor. How can I have problem with this sensor if I am using a defouler? and what can I do??
thanks
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