Dropping Alternator Charge Voltage - ELD Enable/Disable

K-Series Programmable ECU installation questions / support issues
playasyougo
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Joined: Mon Sep 05, 2011 12:48 pm

Re: Dropping Alternator Charge Voltage - ELD Enable/Disable

Post by playasyougo »

The issue that i've been experiencing has been resolved by my garage thankfully!

The only information i've been advised is that there were three poor grounds throughout my gear display and flatshift wiring as well as an earth being back-fed voltage ~4volts.

blacksi76
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Location: St. John's, NL, Canada

Re: Dropping Alternator Charge Voltage - ELD Enable/Disable

Post by blacksi76 »

In relation, i get a voltage drop whenever my spal fan cuts in and causes the car to stall. I have the ELD wire cut and disabled because I used to use it as a wideband signal, but i now use the s300 wire pigtail.... Would lack of eld cause my car to not be able to idle up quick enough to keep the voltage up to start my fan and not stall?

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Hondata
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Re: Dropping Alternator Charge Voltage - ELD Enable/Disable

Post by Hondata »

The ELD doesn't control the alternator voltage. If the voltage drops, look at the alternator wiring and make sure it is continuous with no connections. Also check that the radiator fan current does not cause the ground voltage to float up, and that the injector dead times are accurate for the lower voltage.
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blacksi76
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Re: Dropping Alternator Charge Voltage - ELD Enable/Disable

Post by blacksi76 »

Ok thanks will do, good info,

blacksi76
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Re: Dropping Alternator Charge Voltage - ELD Enable/Disable

Post by blacksi76 »

I have also noticed that i hadn't disbled the altc in the miscellaneous parameters so i did that.

So to check the ground voltage, using my multimeter, testing with the car running both before and after the fan cuts in, i just touch the two multimeter prongs at two separate ground locations?

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Hondata
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Re: Dropping Alternator Charge Voltage - ELD Enable/Disable

Post by Hondata »

For the grounds use a multi-meter in voltage mode and put one probe on the battery negative. Use the other probe to test each ground and check the voltage is zero. Do this with the fan off and then on and see if the ground voltage floats up.
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Bullyk20
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Joined: Sun Apr 09, 2017 7:12 pm

Re: Dropping Alternator Charge Voltage - ELD Enable/Disable

Post by Bullyk20 »

hi,

my rsx recently starts to show on kmanager display 12.7v sinces 2k to 3.5k more or less, if a load is applied the voltage goes weel.

what would be?

Kr4nG
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Joined: Sat Sep 15, 2018 9:25 pm

Re: Dropping Alternator Charge Voltage - ELD Enable/Disable

Post by Kr4nG »

So are we suppose to tap the wire from c101pin 8 ATLT-L into B 10 ATLT-L in order to get our charge light to work? Because c101 pin 8 goes to nothing on my swap and I'm trying to figure out how to get my charge light to work.

Kr4nG
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Re: Dropping Alternator Charge Voltage - ELD Enable/Disable

Post by Kr4nG »

anyone? to my question above

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Spunkster
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Re: Dropping Alternator Charge Voltage - ELD Enable/Disable

Post by Spunkster »

You should contact whoever did the harness for this as we do not make or sell swap harnesses.

Kr4nG
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Re: Dropping Alternator Charge Voltage - ELD Enable/Disable

Post by Kr4nG »

Regardless of what harness I am using. Is the wire from (c101pin 8 ATLT-L) be connected to (B 10 ATLT-L) Yes or No.

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Spunkster
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Re: Dropping Alternator Charge Voltage - ELD Enable/Disable

Post by Spunkster »

I do not know as we do not work on harnesses for engine swaps. You will need to contact the manufacturer of the harness.

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