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Old 10-27-2012, 11:33 AM   #2
BC_ZX3
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Join Date: Jul 2007
Fan#: 48751
Location: Vancouver, BC, Canada
What I Drive: 2001 Red ZX3 Turbo

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Upstream O2 sensor is on the right in the pic. Yellow/black is part of the 02 heater circuit. Not sure what the black is for unless it's been spliced in for Green/yellow.

Wiring is for an 02 SVT, although non-SVT is identical.

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