EK3 knock advance error code at vtec crossover point

[Pubsamare]

Guys, I have a Honda EK3 - VI (3 stage vtec). For a few days, I'm getting the CEL when the RPM reaches 2200, the 1st VTEC crossover point. Scanner gives the code of the Knock Advance sensor. What could be the issue? I'm taking it next week to be repaired, and would like to have an idea of the possible cause before that. 

Ps. The vtec solonoids are working fine and are not throwing a code.

Thanks in advance!

Edited October 27, 2016 by Pubsamare

[Rumesh88]

Which code it is throwing up P0325 or P0330? My wild guess is a marginal fuel starvation. Could be due to low fuel pressure.

[Pubsamare]

I'm not sure of the exact code. I oversaw that the scanner read "knock advance" and something.

I have an oil leak into the 4th plug, i replaced oil seals, but still there is some oil in the plug. And i noticed that my idle rpm has gone up since this issue started. Could they be related?

[Rumesh88]

Could be related if the valves fails to close properly. Do a simple compression test to confirm.

Edited October 27, 2016 by Rumesh88

[Pubsamare]

Thanks. I will ask the mechanics to check on that. And thank you the prompt responses Rumesh88, you really are a gem to this community.