Quote:
Originally Posted by dragoontwo
No. The electrical plug for the secondary O2 sensor has the flex fuel kit plugged into it. They removed the now unused sensor from the header, and plugged the hole.
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Quote:
Originally Posted by pallen
Right, the rear O2 sensor was still in the header, but disconnected. The Delicious Tuning FlexFuel thing was plugged into the electrical port where the O2 sensor would have been plugged in.
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Doh! That makes sense now...
As for the second hole, I would just plug it with the extra sensor OP has instead of taking the chance on something that probably fits and seals, but we aren't sure how it responds to exhaust levels of heat. But that's just me.