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How to bypass 02 sensors QR25DE ?

3588 Views 2 Replies 3 Participants Last post by  thesammythecurse
I need help on how bypass the o2 sensors on my QR25DE I purchased an aftermarket header to delete the precat and now I keep getting ses codes for the 02 sensors. If anyone knows how to bypass them please help me out and tell me what I need to do.
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Make sure you do it to the second (downstream) sensor. For your 03 sentra, it should be on the header still.

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