boostedefhatch

ok i have a 91 ef hatch with dpfi, and i have a FULL LS swap do i have to convert my harness to mpfi and get a obd1 conversion harness? can i just use the ls harness and ecu?

ryanevansoh

you need to convert it to multi point and the obd depends on the year of the ls, so what year is the ls from? also, it is easiest to just convert your stock harness and yes you need to use the ecu from the ls

allgo88

convert the dx harness to multiport.you will need the injector plugs from the ls harness.thats about all its good for.

D16SiHatch

http://hondaswap.com/swap-articles/d...writeup-49557/

boostedefhatch

so can i use this?http://cgi.ebay.com/ebaymotors/88-91...Q5fAccessories
or does the fuel injector conectors HAVE to be from the ls harness?

D16SiHatch

yes that will work just fine. i mean if you'd rather pay for it than attempto do it yourself, its the way to go.

it will come with obd0 injector clips so if you are going to use obd0 injectors in the ls then this will be fine. if you want to use obd1 injectors then i imagine you can ask him to put obd1 clips on for you. otherwise you can switch them out yourself. hell if you tell him you want obd1 clips, you won't be needing the resistor box, so he may even solder up those connections for you. just send him a message and see what he can do.

boostedefhatch

lol i think if i attempt my self i will have a epic fail. lol wiring is not for me im 17, that being said the engine obd1 its out of a da teg, so if i get that with ob1 clips, what does a resitor box do exactly? on another note i will need that harness the mpfi, then a obd0 to 0bd1 conversion harness and b series motor mounts is there anything else i will need to complete this swap beside modifing the shift linkage, and its a cable tranny also

D16SiHatch

the resistor box drops the +12v down to about 5.5v before sending it to the injectors. obd0 injectors have to be run with one of these boxes. since you'll be using obd1 saturated injectors you won't be needing the res. box.

this is what you'll need

-90-93 Integra axles, 94+ pass axle abs,non-abs,auto,manual will also work
-90-93 integra MANUAL intermediate shaft
-obd0 to obd1 Ecu conversion harness w/ subharness
-obd0 to obd1 dizzy adapter, if you didnt get one with thee above
-DA throttle cable
-shift linkages (hasport, avid, innovative, ebay)
-Motor mounts (see above^)
-90-93 integra rear transmission bracket, must be from a manual

EJ1_Sleeper

im dropping a LS into my hatch thats DPFI soon and im having a guy from ebay make up a harness for the MPFI and OBD1 set up, so its all plug and play.

boostedefhatch

so all the parts listed above i should take them from the donor car correct? good, so what do you mean sub harness

jimihendrixbro

Make sure you eliminate the resistor box for your injectors. This is done by snipping off the clip going to the resistor box and soldering the set of i believe 5 wires together.
-Jake

D16SiHatch

subharness is in reference to the wires that branch off from the wires betweem the obd0 ecu plugs and obd1 plugs of the jumper. the subharness is simply the wires that you hook up to your 4-wire o2, etc. some jumpers you have to get the connections yourself and splice them onto the subharness wires. places like rywire have the subharness ready to go with plugs already attached.

jdmb18b1flip

ok so i have a 90 ef hatch hf and i have a 96 b18b1 i need help wite the actue; wiring i have a obd 0 to 0bd1 ecu jumper harnes and ordering a obd0 to obd1 dizzy jumper


i stilldont get how to wire upp the injectors and what alse i would need to wire