ELD voltage reading 5 volts unplugged

K-Series Programmable ECU installation questions / support issues
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The Spectacle
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ELD voltage reading 5 volts unplugged

Post by The Spectacle » Wed Jan 20, 2010 8:37 am

What should the ELD voltage reading be with nothing plugged in? Mine is reading 5 volts...want to make sure this is normal before I go through the trouble of volt metering my wideband output.

Thanks.

contectr
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Post by contectr » Thu Jan 21, 2010 4:17 pm

i have the same problem and i can't say how to fix it :-(
PRA ECU K20A2 european Civic Type R My2004
Honda Ep3 stock k20a2 jrsc

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Spunkster
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Post by Spunkster » Thu Jan 21, 2010 5:23 pm

What wideband are you using?

on the bench with nothing connected it shows 4.55V

The Spectacle
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Post by The Spectacle » Thu Jan 21, 2010 5:33 pm

PLX

I'm having issues with my wideband showing below 12.3 afr. Trying to narrow down the cause

contectr
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Post by contectr » Fri Jan 22, 2010 5:30 am

yeah i read 4.55V with the ELD wire unpluged!how this??
i want to use it for connect my EGT PLX linear output but they don't work well...
Honda Ep3 stock k20a2 jrsc

The Spectacle
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Post by The Spectacle » Tue Jan 26, 2010 2:12 pm

Spunkster wrote:What wideband are you using?

on the bench with nothing connected it shows 4.55V
So how does this work? Reverse voltage reading or something? Do I need to start playing with voltage offsets to get my WB to read below 12.3 AFR? PLX says they're not required so something is not jiving...

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Spunkster
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Post by Spunkster » Tue Jan 26, 2010 3:20 pm

voltage offset is used to match the reading from the wideband display to the datalogged value.

The Spectacle
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Post by The Spectacle » Tue Jan 26, 2010 4:21 pm

So no.

Can you answer my question? Is the ELD voltage right?

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Spunkster
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Post by Spunkster » Tue Jan 26, 2010 5:40 pm

Spunkster wrote:on the bench with nothing connected it shows 4.55V
How exactly do you have the wideband connected?

The Spectacle
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Post by The Spectacle » Tue Jan 26, 2010 7:03 pm

0-5 volt output from the SM-AFR box connected to the ELD pin.

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Spunkster
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Post by Spunkster » Wed Jan 27, 2010 10:10 am

complete details...where have you connected it to power and ground, etc...

The Spectacle
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Post by The Spectacle » Thu Jan 28, 2010 5:49 pm

Power is coming off a spare switched spade connector in the fuse box, ground is one of the screws used to attach the hood latch. I've tried another power source and got the same results.

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