I just bought a 1992 CA VX. The Engine is definately D15Z1. The VIN is correct. And the emmision sticker says CA and Fed. The ECU is P07-L00. This model is kind of unusual: The valve cover gasket does not have the VTEC-E although it looks like a VTEC and the O2 sensor is 5 wire. Any clarification would be appreciated. I am looking to convert to lean burn after I smog it.