Code P2647, pressure sensor and the rocker arm sensor location needed

I attached the location of the pressure sensor and the rocker arm sensor location as well.

I would consider having the oil system pressure flushed with hot acid to break up all the dirt and debris. That is the main cause for this issue.

Roy

Oil Pressure Switch Replacement

'07 model J35A6, J35A7 engines and '08 model J35A6 engine

1. Disconnect the oil pressure switch connector, then remove the oil pressure switch.

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2. '07 model J35A6, J35A7 engines: Remove any old liquid gasket from the switch and switch mounting hole.
3. '07 model J35A6, J35A7 engines: Apply liquid gasket to the new oil pressure switch threads, then install the oil pressure switch.

NOTE: Using too much liquid gasket may cause liquid gasket to enter oil passage or the end of the new oil pressure switch.

4. '08 model J35A6 engine: Install the oil pressure switch with a new O-ring.
5. Connect the oil pressure switch connector.

Rocker Arm Oil Pressure Sensor Replacement

'08 model J35A7 engine

1. Disconnect the rocker arm oil pressure sensor connector, then remove the rocker arm oil pressure sensor.

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2. Install the rocker arm oil pressure sensor with a new O-ring.
3. Connect the rocker arm oil pressure sensor connector.

Correct.

Your picture has the sensor location correctly. The green is the oil pressure sensor.

Roy

Thank you.

Same to you and yours.

Roy