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Discussion Starter · #1 ·
I had relocated my rear 02 sensor behind main cat approx 6 months ago when installed hotshot header. Recently I am now getting a ses light (code 37). I reset it but it returns. Is it possible this relocation is no longer working for some reason or maybe a 02 sensor gone bad?

I was thinking of putting in the 02 simm but it looks like the sensor still needs to be installed to function properly? Thanks
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