I currently have a P14 (H23) Ecu in my Jdm F22b prelude. the problem is that i cant install a Knock Sensor on the engine because it dosen't require one. and its throwing a Cel on me because of the p14 which is looking for a Knock Sensor Since its For h23 which requires a Knock Sensor. What Ecu Should i get. Some1 told me bout the p39 or the p0 C . Can any1 help me here? thanks.