I just changed over from an H23 to an H22 JDM I am still waiting for the p13 to get here but I was able to get the engine to start with the p14 but my mechanic told me that there is a problem that fuel is not getting to the engine and is not sure if the p14 would cause the fuel pressure to cut off or if the fuel pump is just dying any ideas on how to test this without having to take the gas tank off