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Factory "boost gauge" signal?


BlackHornet
Newbie
889/2000


Galant VR-4 org Post #: 1249276 posted 07/06/20 09:34 PM     Remind Me!  Send Private Message   Edit Post      
Hey guys, bought vr4 not running and as I am making progress on getting it back up and going, I am planning ahead for some future things.

One question I have is, what kind of signal does the stock boost gauge get? I know that ECMLink can be used to change the gauge other things besides boost, like knock count.

From reading, it is my understanding that the 6 LEDs cannot be split up to show 2 different things and so I assume it can only have one input signal. So, does it operate off of a 0-1v signal?

I have tried searching and it appears as if the only returns that I get are people saying that its a terrible boost gauge.

Thanks!

Posts: 24 | From: Tulsa, OK | Member Since: 04/02/20 | IP: (2600:8804:7500:1) | Report this post to a Moderator

tektic
Senior Member


Galant VR-4 org Post #: 1249291 posted 07/10/20 11:42 AM     Remind Me!  Send Private Message   Edit Post      
5v signal but controlled by a scale encoded in ecu.

Posts: 1499 | From: ronkonkoma, ny | Member Since: 12/19/12 | IP: (74.71.69.248) | Report this post to a Moderator

BlackHornet
Newbie
889/2000


Galant VR-4 org Post #: 1249371 posted 07/19/20 10:03 PM     Remind Me!  Send Private Message   Edit Post      
gotcha, thanks! I was wondering how exactly it functioned

Posts: 24 | From: Tulsa, OK | Member Since: 04/02/20 | IP: (2600:8804:7500:1) | Report this post to a Moderator

Galant_martin
Junior Member


Galant VR-4 org Post #: 1250241 posted 12/23/20 07:48 AM     Remind Me!  Send Private Message   Edit Post      
Is there any way to test this boost gauge? I want to use this in my EU Galant, but i dont find many informations about this thing.
There is one wire missing from my ECU connector (PIN3 Turbo Gauge), but are there other things what i need to change?

Thanks

Posts: 45 | From: Austria | Member Since: 10/21/13 | IP: (212.88.30.240) | Report this post to a Moderator

AllanL
Heal and Toe


Galant VR-4 org Post #: 1250305 posted 01/12/21 07:46 PM     Remind Me!  Send Private Message   Edit Post      
supply max 5V to corresponding meter panel for the boost gauge.

if you have a variable resistor, use it to regulate the 5v signal to check each boost gauge LED.

Posts: 272 | From: NV | Member Since: 08/05/08 | IP: (210.154.147.212) | Report this post to a Moderator

Galant_martin
Junior Member


Galant VR-4 org Post #: 1250306 posted 01/13/21 06:11 AM     Remind Me!  Send Private Message   Edit Post   
Thank you. I will try that. I use Pin 23 from the ecu (maf Supply 5V).

EDIT

I tried it and all led‘s are working;) thx


Edited by Galant_martin (01/13/21 10:54 AM)

Posts: 45 | From: Austria | Member Since: 10/21/13 | IP: (2001:4bb8:109:28) | Report this post to a Moderator


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