Civic EG

just recently i bought a 94 civic ex coupe with a y8 swapped into it it has the p28 computer and the distributer off the original engine which does not bolt up so it leaks out the bottom. the wiring going into the ecu is all cut up and spliced together so when passengers get in the car their feet hit wires and make the car sputter or die. which main wiring harness do i need and jumper harness to have a smooth and clean wiring setup. also what is the distributor code for the y8 everything i have found says td-80u but it also says its for non v-tec

You need a 92-95 Civic SOHC non-VTEC distributor. This is identical to the Y8's distributor but has the OBD1 plugs that your chassis has. The leaking is most likely due to a bad distributor O ring or the distributor could be bad internally. If the distributor is for a D16Z6 then to get the timing right, the mounting brackets on the dizzy will have been cut to shit and it will be hanging on by two bolts.

There is no reason for the ECU wiring to be messed up if you're using a P28. The P28 is not good for that motor but it will run it. The ignition timing is very different between the two motor generations. The fuel maps are different but that is not as critical since the ECU has a built-in feedback system for the air / fuel ratio.

Most everything will plug into the motor and you would just add VTEC wires if the chassis harness didn't have it. If the person who swapped it was smart, they'd have put some OBD1 injectors in the motor so the chassis harness will plug right in. But they probably rewired it to the OBD2 injector harness and that's your mess. You'll have to trace each wire out and replace it, fixing the connections. A good connection will not have problems when someone kicks it. That is just pure crap.

Best thing to do would be to convert to OBD2 with a new harness and ECU. But replacing the harness is quite a nightmare as it is integrated with the dash harness. And that's why you should never buy a modified Honda. You just bought someone else's problem. If you do go this route, first verify that the sensor and harness on the crank pulley are still intact.