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HomemadeTurbo - DIY Turbo Forum (https://www.homemadeturbo.com/)
-   Engine Management (https://www.homemadeturbo.com/engine-management-10/)
-   -   Battery Voltage at WOT (https://www.homemadeturbo.com/engine-management-10/battery-voltage-wot-100090/)

HMTguy 02-27-2009 02:48 AM
Re: Battery Voltage at WOT
 
Originally Posted by c0mpl3x
The ELD will output .1 - 4.8 volts to the ECU. This reference voltage is what tells the ECU to increase or decrease the field strength in the alternator, which in turn bumps up the output of the alternator.
Way to copy and paste

Smith-02 02-27-2009 02:56 AM
Re: Battery Voltage at WOT
 
Originally Posted by b20beast83
Car isnt FI.................... AS YET!

Cool i will re enable it tomorrow

do you think thats causing this mess?
fi = fuel injected

forced induction is a supercharger, turbos are welcomed induction :)

Tom-Guy 02-27-2009 04:00 PM
Re: Battery Voltage at WOT
 
Originally Posted by c0mpl3x
The ELD will output .1 - 4.8 volts to the ECU. This reference voltage is what tells the ECU to increase or decrease the field strength in the alternator,
Uh, no it doesn't. It detects high loads at idle and the ECU raises IACV duty to compensate for drag. It's a good idea, but doesn't really do much and that's why Honda disabled it on half of the cars they made. The ECU directly monitors system voltage and can tell what to do with the alternator if it's internal regulation circuitry isn't doing the job. Which is another ineffectual design seeing as how you can disable alternator control and it doesn't change voltage.

Jon, stop handing out Honda ECU advice when you have zero experience with it. This dude has a problem with his alternator or grounds.

b20beast83 02-27-2009 06:09 PM
Re: Battery Voltage at WOT
 
thanks for the advise everyone
i re enabled eld just to check.
it is the same problem

Originally Posted by b20beast83
question IS

why will it do it when in gear

should it not happen when i rev in Neutral ?

Smith-02 02-27-2009 06:33 PM
Re: Battery Voltage at WOT
 
Originally Posted by Joseph Davis
Uh, no it doesn't. It detects high loads at idle and the ECU raises IACV duty to compensate for drag. It's a good idea, but doesn't really do much and that's why Honda disabled it on half of the cars they made. The ECU directly monitors system voltage and can tell what to do with the alternator if it's internal regulation circuitry isn't doing the job. Which is another ineffectual design seeing as how you can disable alternator control and it doesn't change voltage.

Jon, stop handing out Honda ECU advice when you have zero experience with it. This dude has a problem with his alternator or grounds.
Originally Posted by jagojon3
Way to copy and paste
:1 i didn't hand out anything that wasn't already in the internet

b20beast83 02-27-2009 06:53 PM
Re: Battery Voltage at WOT
 
altenator was rebuilt
i checked grounds
everything seems secure

hellpp

Smith-02 02-27-2009 09:36 PM
Re: Battery Voltage at WOT
 
take your grounds off, clean the contact point and your terminal end.

tightening does not make your ground magically work

b20beast83 02-27-2009 10:34 PM
Re: Battery Voltage at WOT
 
With ELD enabled it causes more problems
volts drop to mid 12,s even crusing.

I Left it disabled. much better

HMTguy 02-27-2009 10:34 PM
Re: Battery Voltage at WOT
 
Complex, you need to stop talking about ---- you know nothing about. Your "advice" is detrimental.

b20beast83 02-27-2009 10:40 PM
Re: Battery Voltage at WOT
 
as least he IS HELPING :y


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