jdmeg6hatchy

I recently converted to mpfi and and altered my orginal wiring harness for the conversion. I used a 92 civic 7 pin distributor and plug instead of a crx si distributor. Im a little confused with how to wire the plug up to the stock harness. I need to know which wires get hooked up to each other. I also need to know the order of the fuel injectors. Thanks for any help.

jlicrx

wires at distributor - just match colors:
harness orange to distributor orange
harness thin white to distributor white
harness fat white to distributor yellow/green
harness white/blue to distributor white/blue
harness orange/blue to distributor orange/blue

injectors:
#1 closest to timing belt - brown wire
#2 next to #1 - red wire
#3 next to #2 - light blue wire
#4 closest to distributor - yellow wire

jlicrx

did you convert to OBD1? 92 Civic distributor will not work with OBD0 ECU

jdmeg6hatchy

so ive got to use an 88-91 mpfi SI distributor?? then will it work??
why cant i use the 92 obd1??

jdmeg6hatchy

how the heck can you tell a size difference?? I belive there all 18 gauge wires.

jdmeg6hatchy

so is it impossible to use a obd1 distributor with a obd0 ecu??

jlicrx

yes, you need OBD0 distributor from Civic Si or EX or from CRX Si or HF - OBD1 distributor sends different type of signal to ECU - one white wire is a little fatter than the other - if you can't tell which is which, just connect them and if it doesn't start, swap the 2 white wires - also, the white wire that connects to the yellow/green comes from ECU pins B15 and B17 - you can check for continuity on the wire from the ECU and find which is which

jdmeg6hatchy

thanks again man. Ive got a SI distributor on the way!!