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My civic si is giving me code p2646 low voltage. Is that caused by the sensor and all I have to do is replace the sensor or do I have to change the whole vtec solenoid?

Vehicle: 2004 honda civic si hatch back 2.0L

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P2646 VTEC oil pressure switch circuit low voltage

What you are supposed to do is check oil pressure,at 3,000 RPM the pressure speciification should be at 57 psi,then replace the oil pressure switch, And who really does that? When you get this code it is always a good insurance to replace the solenoid also, As Hondas are prone to starve the cylinder head of oil

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