Sedona EX V6-3.5L (2002)
Oxygen Sensor: Technical Service Bulletins
Engine Controls - O2 Sensor/Cylinder Bank Designations
SOURCE: Kia PitStop
TITLE: V6 Sensor Designations and Cylinder Numbering
APPLIES TO: All V6 models
SERVICE TIP:
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Sensor 1 designates the sensor is before the catalytic converter.
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Sensor 2 designates the sensor is after the catalytic converter.
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Bank 1 designates the sensor is on the bank with cylinder number 1.
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On Kia V-6 engines, bank 1 (cylinder 1) is the firewall side of the engine.
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As a rule of thumb on a V-style, cylinder 1 is always farther forward on the engine than cylinder 2.
