sleepers91hb

I was wondering if any one can answer this for me... I have a question about the wiring from OBD0 to OBD1 w/ a USDM P30 ECU throwing a ELD code?

On a RHD ef9 harness when converting it from OBD0 to OBD1 I have read that the JDM B16 harness there is no ELD setup, and when you convert it to OBD1 and use a USDM P30 it will throw a code for ELD, Electronic Load Detector, I believe...

I am trying to get the car bard when finished with all OBD1 P30 del sol parts. So I know the easy fix from what I have heard is chip the ECU but I figure that will effect getting it bard. I haven't yet installed the engine and wiring so I am trying to figure this out before hand.


SO MY QUESTION IS HOW DO I WIRE UP AN "ELD?" To keep it all legit...


Also, will I have this same problem on a standard USDM 89 civic si obd0 converted to OBD1 B16A using the USDM P30 ECU? Or do US civic's already have the wiring for the ELD?

Please help getting ready for my build and want to make sure I get all of it right the first time.... thanks

1990hondacrx

if your going obd1 you might as well just got p28 and have it chipped with crome and you can disable ELD in the chip. also efs have eld already

1990hondacrx

ELD is in the black fuse box under the hood on shock tower.. the purpose is to regulate when the alternator should be on or off to help power things in the car all Honda have them that i know of go to google and RESEARCH use search button this has been covered SEVERAL times

sleepers91hb

I have read several threads and google searched as well, but what I am trying to find out is if any one has had this problem and added a ELD to their JDM RHD harness.

Rywire.com has a jdm SIR OBD0- OBD1 ECU jumper for sale but they say that they cannot help with the ELD problem, so thats what im trying to figure out.

I know you can use a different ECU and chip it, but I am trying to get my car "bar'd" and and in doing so you have to use a stock USDM p30 and make your civic as if it was an OBD1 94-95 Del sol vtec B16a3.

Correct me if I'm wrong? or is there some other way of getting around this? I would like to hear from some one who has actually had this problem and got their car bar'd.

sleepers91hb

Bump!

snotrocket

I'm in the same boat. I'm considering just having a Reff give me advice. In fact a friend of mine showed up and the Reff gave him the sticker then told him to come back with the swap fixed. Anyway hopefully someone will have the correct answer. Finding a true answer in HT is like finding a needle in a haystack.

sleepers91hb

Yeah It seems everyone is so quick to say research it, when I have and there is no good info that I have found!

All I'm asking for is either someone who has completed this, adding a ELD to a harness or a good link to a thread explaining how it works and how to add one...

Hainswof

Judging by the pinouts on this page ", ELD existed on the models beneath the EF9. On the EF9 however, ELD seems to not exist and be replaced by the Knock Sensor.

I have disabled ELD on my EF9 OBD0-OBD1 swap.

villc713

Maybe this can help http://www.locashracing.com/instructions/OBD0-OBD1.pdf and a obd1 pinout http://technet.ff-squad.com/wiring.obd1.htm

DVDr

iTrader: (2)

Old thread, but for those running the stock p30 either jdm or usdm. The eld signal that trips error code 20 is from the wire for pin out a16 missing . this comes from the 4 wire alternator .