Town & Country LWB AWD V6-3.8L VIN L (2000)
Oxygen Sensor: Component Locations
Engine Compartment/Exhaust System
Fig. 44 Upstream Heated Oxygen Sensor
The upstream heated oxygen sensor is installed in the exhaust manifold.
Fig. 8 Downstream Heated Oxygen Sensor
The downstream heated oxygen sensor threads into the outlet pipe at the rear of the catalytic convertor.
OBD-II Heated Oxygen Sensor Numbering Convention
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Cylinder bank number one is the bank that contains number one cylinder.
See: Ignition System/Firing Order