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 Post subject: Openport 2.0: 2.5mm jack tip volt logging with Romraider
PostPosted: Sun Aug 03, 2025 8:18 pm 
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Joined: Sun Aug 03, 2025 7:42 pm
Posts: 2
Hi gyus.

I have AEM AFR Failsafe (30-4900) which doesn't have serial rs232 output however there are analog +5V output which provides the AFR level signal. I'm curious about getting this analog signal using a 2.5mm Stereo Jack and passing it to the RomRaider.

Is there any way to log using romraider that voltage (or calculated value based on that voltage) from tactrix 2.5mm tip (OEM12 pin)?


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 Post subject: Re: Openport 2.0: 2.5mm jack tip volt logging with Romraider
PostPosted: Wed Aug 13, 2025 4:17 pm 
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Joined: Sat Jul 06, 2013 8:55 am
Posts: 3264
Location: NI
cant help you logging the 2.5mm jack - but you could take that 0-5v input and log it from a rear o2 input

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Good luck and may the logs be ever in your favour!


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 Post subject: Re: Openport 2.0: 2.5mm jack tip volt logging with Romraider
PostPosted: Thu Aug 21, 2025 12:40 pm 
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Joined: Sun Aug 03, 2025 7:42 pm
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bludgod wrote:
cant help you logging the 2.5mm jack - but you could take that 0-5v input and log it from a rear o2 input

brilliant idea!

i've found that for my forester 2007 ot should be a "B4" wire at B135 socket/plug
Image
Image
is that looks true?

what is the best place to wire? directly at ecu side of the harness under passanger's carpet? (my aem afr output wire came from gauge mounted to dash)


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