ed civic

[Davo "90 civic"]

disagree going to mpfi is a piece of piss i did it on my mates b4. the only problem is going up in OBD's i hear that is a slut.

[SHOGUNOVDDRK]

Really depends.

OBD's is supposed to be easy as fark.

Really depends on your technical skills really.

[CRXer]

didnt say efi conversion is hard,just said its a lot more work than going obd conversion

hardest thing about goin efi is just finding a crx wreck sometimes,but theres always the more expensive aftermarket pump & lines option.

like i said before,the easiest option on a carby ED is just use the main car harness from the OBd car in question & just break all the wiring u need out of it & install.

most of the efi wiring is independant of anything else in the car,its just mainly power & gauges u got to adapt to in the ED

[VTECnique]

id be just sticking with an non OBD D16A8 out of a crx,just as healthy as the y1/y4's,its only the k's on the motor that will be the difference,maybe.

to go up in the OBD's just get an appropriate main harness from the car/motor combo in question & pull the EFI wiring out of it then just install to the ED,then the motor harness is plug & play,can be done in a coupla hours.

ur biggest headache is the carb to efi conversion,source a crx wreck & pull the tank & lines on it.

could you not use tank, pump & lines from the same car the Y1/Y4 came out of??

[CRXer]

could you not use tank, pump & lines from the same car the Y1/Y4 came out of??

im not sure that a tank from an EK,EG would actually fit in the physical space the ED has,but in any case the fuel hardlines will not work,the ED crx runs the lines inside the cabin, the EG runs them under the car & the fuel pumps are in a different location in the tank to make the final connection. Besides the EG fuel lines will probably be long enough to turn up in the middle of the engine bay(if not connect all the way to the radiator,lol) if fitted to an ED.

u can always adapt things to suit,but thats not what its all about on most ED swaps,usually its about budget & to source something from the same wrecked chassis that will just about all fall into place is usually the cheapest option.

[Davo "90 civic"]

you can use stock tank etc etc for any d-series swap. im still split between a y1 and a8, hmmmm.....

[VTECnique]

like i said before,the easiest option on a carby ED is just use the main car harness from the OBd car in question & just break all the wiring u need out of it & install.

most of the efi wiring is independant of anything else in the car,its just mainly power & gauges u got to adapt to in the ED

So, if he decided to go with a D16A3 from early integra, he could use the engine harness, & just plug/splice it into the existing ED harness, or would you need a whole harness, head lights to tail lights?

[VTECnique]

you can use stock tank etc etc for any d-series swap. im still split between a y1 and a8, hmmmm.....

ive been looking into this more cause im considering a 90 civic hatchback for a project car. A D16A3 from an early integra would be a whole lot easier to find compared to a D16A8, plus the A3 is OBD0 so no need to use a conversion harness to go up OBDs.

In saying that, OBDs arent really that hard to change. all thats need is the conversion harness, & with some conversions, dizzy, fuel injectors, etc.

Ive looked into this, but since the ED civic is already carby, would you be able to use any OBD specific motor with its engine harness & just adapt that to the existing ED cabin harness?

[Webby_roller]

I ran a d15b jdm vtec motor in an 1989 ED... Best fun i had in a long time... was quick.... awosme on fuel....

I bought the car as is and it had a pick up pump from the tank, then ran fuel through standard lines up to the motor then back through existing lines....

Never had troubles with it.... heard people talking about not being able to run it below half a tank with that set up... but i accidentally ran it empty several times...

i was going to run it to a surge tank, but i sold it b4 i could put the surge tank in...

Worst part was the obd conversion.... had so many troubles with the wiring....

Man i miss that car lol

[CRXer]

So, if he decided to go with a D16A3 from early integra, he could use the engine harness, & just plug/splice it into the existing ED harness, or would you need a whole harness, head lights to tail lights?

the D16A3's were vac advance & ecu under the seat werent they?

the way i prefer to do it is engine harness stays as per engine used
then just get the main harness(the one that runs along the firewall inside the car) that matches to the engine harness & ecu your using(from whatever car that may be) & just remove all the efi wiring from the main harness & install that to the ED.Once u remove all the conduit,tape,etc from the main harness the efi wiring virtually drops straight out of it.

that way engine becomes plug/play,& u retain factory wiring reliability on the efi sensors & u just supply power to the ecu(main relay) & wire up your gauge cluster,A/C,etc from the new reduced main harness.
any joins in the wiring are then under your dash out of the weather & shit,& only made in fairly robust wires(ie not efi sensors).

the only thing in the back of the car is 2 wires to the fuel pump,so no need for anything from the rear.

ur not exactly going to be able to splice wiring,etc to a carby ED as there is not going to be much wiring to splice to anyway.

[CRXer]

ive been looking into this more cause im considering a 90 civic hatchback for a project car. A D16A3 from an early integra would be a whole lot easier to find compared to a D16A8, plus the A3 is OBD0 so no need to use a conversion harness to go up OBDs.

In saying that, OBDs arent really that hard to change. all thats need is the conversion harness, & with some conversions, dizzy, fuel injectors, etc.

Ive looked into this, but since the ED civic is already carby, would you be able to use any OBD specific motor with its engine harness & just adapt that to the existing ED cabin harness?

D16A8 from ED crx =obd0 + theres plenty of them around,theres a rolling shell goin over at crxaus for like $500 or somethin,got tank, lines,motor, wiring(i think),even think its in brisbane

[VTECnique]

the D16A3's were vac advance & ecu under the seat werent they?

the way i prefer to do it is engine harness stays as per engine used
then just get the main harness(the one that runs along the firewall inside the car) that matches to the engine harness & ecu your using(from whatever car that may be) & just remove all the efi wiring from the main harness & install that to the ED.Once u remove all the conduit,tape,etc from the main harness the efi wiring virtually drops straight out of it.

that way engine becomes plug/play,& u retain factory wiring reliability on the efi sensors & u just supply power to the ecu(main relay) & wire up your gauge cluster,A/C,etc from the new reduced main harness.
any joins in the wiring are then under your dash out of the weather & shit,& only made in fairly robust wires(ie not efi sensors).

the only thing in the back of the car is 2 wires to the fuel pump,so no need for anything from the rear.

ur not exactly going to be able to splice wiring,etc to a carby ED as there is not going to be much wiring to splice to anyway.

So to be able to start the engine, you'd need to wire it to the main relay correct? & extra wiring for rpm, speedo?, water temp, fuel gauge?, etc.