I have a 94 civic with a 98 type r engine in it. I kept getting a code 23 which is a knock sensor code. The knock sensor located right above the oil filter, right? My car didn't come with any of the Vtec wires so I bought the Hasport GSR vtec wiring and pluged every thing in just like hasport told me to. I have another question. Do JDM engines have a Vtec oil pressure sensor, because I have an extra plug for the vtec oil pressure on my hasport harness and don't have a vtec oil pressure sensor.