Ya, I have a 92 DOHC ZC in my 89 civic Si . There's a plug that's right under the front passenger side cam I used the stock Si wiring harness is that right? Or do I have to change it to the DOHC ZC wiring. Or can i just bypass the cam plug all together. The colour of wires on the ZC plug are Orange,then Orange with a Blue stripe,Then Peach, and another Peach coloured wire with a Blue line also. The plug is put there for a reason so I figure, I can't bypass it. And one more thing I have seen alot of picutes of ZC and there cam covers are Black and mine is grey.What does that mean. Thanx for the help.