No. The oil pressure sensor is not required for the engine to run.
No.
You use a scan tool after repairing the cause of the code.
You can unhook the battery or use a scan tool to erase the code. If the cause is not repaired, the light will return.
The normal cause is a blown fuse.
NO
No.
Not that I know of.
Faulty sending unit.
No it will not cause an engine miss.
It is possible.It is possible.
The "bus" is the system that the computers on the car use to communicate with each other. "no bus" means that something has happened to cause a failure in the system.
Check engine light on?? Not running on all cylinders?