P2646 Honda - 2005 civic lx 4dr special edition

Question

I found a p2646 code for my 2005 honda civic lx 4dr special edition. I would like to resolve the issue as early as possible

Answer 1

P2646 VTEC oil pressure switch circuit low

This may just be more than just the oil pressure switch, the complete repair would be to measure the oil pressure where the VTEC oil pressure switch is at, if the oil pressure is above 57 psi replace the VTEC oil pressure switch if lower than specified replace the VTC solenoid