Hi all. I am a complete noob when it comes to tuners, but am trying to help my son out with his 93 del sol S he just bought. A little research has told me that the stock d15b7 bottom end is still there, with a p08-2 vtec head from a d16z6 swapped onto it, and using a p28 ecu. I'm not sure what the engine harness is from, but the plug on the 02 sensor doesn't match up to anything on the harness, and it's throwing a code 1 and a code 4. I know it's the right 02 sensor for the car, the d15b7, and the d16z6 use the same sensor, but even the wire colors in the engine harness plug are not right. I was hoping someone could give me some guidance on how to clear the CEL codes. Thanks in advance.