miravete

iTrader: (1)

ill make a build thread later...but for now, i need some help...

converting my 89 civic ef from usdm to jdm....

i have all the jdm wiring, from engine, all the way to the tail lights...

except, i have a couple of questions...

these three plugs, anyone know where they go? its the one with the green plug. they are near the ecu....theyre not the ecu....cuz the ecu plugs are next to it...




what about the fuel pump.....the usdm fuel pump has 4 wires...where as the jdm wiring has 5....any idea?

miravete

iTrader: (1)

converting the ef from LHD to RHD....

hence why the wiring questions...

jdmjunkieXL

The three plugs might be for the climate control

skill178

pretty sure the jdm's had nice fancy climate control and crap like the new ones do now. good chance that's it and the fuel pumps might be different in japan, might have to cut the plug and put the 4wire plug on it to run the us pump or buy a jdm pump.

miravete

iTrader: (1)

the rhd clip was from a 91 SiR, and yes, it did have Auto Climate Control (fancy), and rear fog light wiring....

but the plugs arent for the climate control, since they are located at the passenger foot area. the climate control plugs are more to the center.

as far as the fuel pump wiring....i know i have to reduce it from 5 (jdm) to 4 (usdm), but im not sure which cable im going to have to leave out....

anyone have an idea of what cable does what?


thank you all for your input

crx_si-r

swap in an LS fuel sending unit. the 5th wire is for the low fuel light. clearer picture of the wire colors may help

skill178

he is probably right saying add the ls unit as a SiR has a b-series and probably more likely to have an integra ls pump

miravete

iTrader: (1)

thanks for the insight.....i'll look into the LS fuel sending unit....



so I'm guessing the LS fuel sending unit/fuel pump will be a direct fit into the ef gas tank?

skill178

i honestly cant tell you for sure but it is likely, as far as i know the fuel systems are pretty much the same, never seen anyone have to upgrade fuel systems to run a B-swap

miravete

iTrader: (1)

yeah, thats what i thought.....

i swapped a b series into a sohc ek....didnt have to change the fuel pump....


i guess im just gonna have to figure out if one of the wires is for the fuel light and cancel it....

or look into the LS fuel sending unit and see if it does have 5 wires....

crx_si-r

can you confirm the 5th wire function, or is it just a hunch?

ill try to take a pic asap....

skill178

does your gauge cluster have a light? ill see if i can find any info

miravete

iTrader: (1)

my hatch is an 89, thus it had the 89 cluster....and the rhd clip is from a 91...so im gonna go w/ a 91 cluster (jdm cluster) since all the wiring is there.....

thus i dont know if its true or not on the low fuel light...

crx_si-r

jdm clusters have a low fuel light. thus th 5th wire


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the fuel systems are the same, but the actual sending unit itself is slightly different. you can wire up the low fuel light or just leave it alone. lil hard to tell but its right there below the E on the fuel gauge

jdmjunkieXL

Have u figured out what those 3 connectors are?

miravete

iTrader: (1)

yeah, i see the fuel light.

thanks, that answers my 5th wire mistery

now, does the integra fuel sending unit come with a 5th extra wire? I'd like to take advantage of the low fuel option

no, i havent figured out what the three connectors are :/

4drEF

Found this on the internets.

Climate control stuff.

Could it be that you just have them routed wrong?
Maybe they don't belong over in the passenger area like you have them in the picture.

miravete

iTrader: (1)

sweet!!

i tried searching, but i guess i didnt put in the right key words.

and you are right....

they are the climate control stuff....

miravete

iTrader: (1)

ok, here is the wiring to the fuel sending unit.....

looks like the green/red wire is the one for the low fuel...



i will look into the DA9 fuel sending unit to see if the DA9 has that extra wire for the low fuel. if not, i guess i'll leave it out :/

miravete

iTrader: (1)

Found this on the internets...

"The Tach went to the left side, speedometer in the middle, and gas and water temp to the right with a door-ajar display and fuel-low warning light. The door ajar told you if the hatch, passenger and drivers doors were open. It read much like a US preludes would. And the fuel-low level warning light was the same as a US 90-93 integra."

4drEF

I tried my searching. It had to have been 7+ years ago when I knew of a build page from hyprids.jp where somebody put in the sending unit.
I can't find it anymore =/
What I can tell you is the DA unit it too big.
Maybe call an importer and see if they have a JDM unit?