ELD voltage reading 5 volts unplugged

K-Series Programmable ECU installation questions / support issues
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The Spectacle
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Joined: Wed Jul 15, 2009 11:09 am

ELD voltage reading 5 volts unplugged

Post by The Spectacle »

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 »

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 »

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 »

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 »

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 »

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 »

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 »

So no.

Can you answer my question? Is the ELD voltage right?
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Spunkster
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Post by Spunkster »

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 »

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 »

complete details...where have you connected it to power and ground, etc...
The Spectacle
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Post by The Spectacle »

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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