I recently installed an H22a into my '93 prelude SI. I was running on a p14 but i recently bought a p13. I am now getting flashed a 22 when the vtec pressure switch is not plugged in and when the switch is plugged in, the check engine light comes on constantly with no error code. A couple questions...The light blue wire comes into the switch, the blk/red wire leaves and is grounded right? How can I determine wether it is the fault of the ECU or the pressure switch, or something else entirely. Thank you.