P0521 code of Honda Civis IMA (hybrid)

Friends I could help me with this code of a Honda Civic the code is a Po521 .. We already check the floods of the computer, the densor is changed and nothing the code always appears .. the scanner gives us this information at the time of checking it we have already tried from any sensor/switch pressure oil - range, operation help me please .. in advance thank you

www.iatn.net/techmail/summaries/2010/10/p0521-dtc.html In this address they refer to your problem and recommend changing the VTEC valve I do not know if your problem is with the oil pressure sensor of the VTEC or engine. Anyway, you can do an idea that you can do.