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Grand Cherokee 2WD V6-3.7L (2008)

Powertrain Management > Sensors and Switches - Powertrain Management > Sensors and Switches - Computers and Control Systems > Oxygen Sensor > Component Information > Diagrams > Page 3327

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Oxygen Sensor: Application and ID

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Cylinder bank number one is the bank that contains number one cylinder.

See: Ignition System/Firing Order

Cylinder #1 on left side. 

Cylinder #1 on right side.

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The first oxygen sensor in cylinder bank # 1 is numbered 

O2 Sensor 1/1.

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The second oxygen sensor in cylinder bank # 1 is numbered 

O2 Sensor 1/2.

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A third oxygen sensor in cylinder bank # 1 would be numbered 

O2 Sensor 1/3.

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The first oxygen sensor in cylinder bank # 2 is numbered 

O2 Sensor 2/1.

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The second oxygen sensor in cylinder bank # 2 is numbered 

O2 Sensor 1/1. 

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If a V-6 or V-8 vehicle only uses one downstream Heated Oxygen Sensor 

(HO2S) it is numbered O2 Sensor 1/2, even if it uses two upstream

HO2S.

Powertrain Management > Sensors and Switches - Powertrain Management > Sensors and Switches - Computers and Control Systems > Oxygen Sensor > Component Information > Diagrams > Page 3327

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