Bypass CEL?

[Disturbance]

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Has anyone used this? Cause I have no cat and my CEL is on and if this actually works I would love to get the orange light out of my face! And would you use it on the 02 sensor housing on the turbo or the one further down the exhaust?

 

[SlickPyro]

I used one on my Saturn ion that had no cat and it worked and I passed Ohio emissions testing with an eBay version of this. You would use this on the second o2 sensor, the one that is after where the cat would be. The only purpose of that o2 sensor after the cat is to check catalytic converter function. So hook it up and erase the check engine codes and you should be good.