First off Yes, I am new here. I also know nothing about the civic that I just got. The main purpose for the car is to save gas. I have a 89 civic hatch si. It hasnt been running due to a cut distributor wire. First off there was one wire that didnt match. Its a yellow wire with green stripe on it comming off the distributor and the wire coming out of the harness was plain white. So to make a long story short the car would turn over strong but not fire. Well I did a compression test and found #1-118 #2-60 #3-60 #4-180. Now I am a picky person when it comes to putting stuff together and this is no different. I had planned on rebuilding this motor any way so out it came. I found out the engine code on the motor is ZC. I have read just about every info post that pissedoffsol has posted, but like I said I have no clue what I am even looking at. I know that the car is a EF series and the motor that should be in here is a D16A6. My question is what obd is this motor and/or what obd is the car? Also if I were rebuild this motor should I or do I need to find the right stuff for a ZC motor or can I use parts from a D16A6? Oh as for the motor it is all in pieces right now and everything looks just fine. I really think it just needs a head gasket, but I want to just renew everything since im in there. My main concern is the parts to use and the wiring of the distributor. Thanks in advance for any help.