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Discussion Starter · #1 ·
So the instructions said if using a PCV, to unplug the o2 sensor and use the bung. So I just unscrewed the O2 sensor and put the bung in and tucked the sensor up into the fairings. Is that good enough or do I need to remove it completely?


Also I didn't get a check engine light when I did the exhaust. I just pulled the cables off the exup servo and left the servo itself in the bike. I assume that's why.
 

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Interesting. when I installed my alien head 2 with pcv, I disconnected my o2 and got a check engine light. When talking with dynojet, they said to leave o2 sensor in, that it can only be deleted with a flash.
 

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Discussion Starter · #3 ·
I talked to brocks. They said take it out. The flash is only to disable the o2 sensor so it doesn't throw a code.
 

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I talked to brocks. They said take it out. The flash is only to disable the o2 sensor so it doesn't throw a code.
Are you saying that without flash you can remove the O2 sensor from the exhaust while leaving it connected to the bike and you will not have a check engine light? I believe the light will come up while cruising at low rpm.
 

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Discussion Starter · #5 ·
Are you saying that without flash you can remove the O2 sensor from the exhaust while leaving it connected to the bike and you will not have a check engine light? I believe the light will come up while cruising at low rpm.
Connected to the harness but not the header, yep. Rode it for a week with no light. Light came on after I removed it from the harness.
 

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Eh, just left mine plugged in. Just got it tuned up today anyway, not too bad.

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