Prosport Electronic Boost Gauge wired into DSMlink

[DSMboostin15]

I've been doing some research on Prosport gauges and I'm thinking of going with the electronic boost, oil pressure, and wideband gauges for my Talon. Since the electronic boost gauge uses a pressure sensor to read vacuum/boost, can I tap into the signal wires and wire them into DSMlink instead of buying the GM 3.3 bar MAP sensor? Has anyone done this before, and if you did, does it work or is there an output signal conflict? Any information on this would be great before I go and buy the gauges.

 

[Blurred Talon]

I don't think that will work as the Pro Sport gauge sensor uses a hose/fitting on the bottom to read boost.

 

[DSMboostin15]

I know that. I was going to install the sensor like you would a mechanical boost gauge, but the pressure sensor has a 0-5v or 0-10v output to the gauge, I believe, as most sensors do. Since it is nothing more than a pressure sensor, that's why I'm thinking about tapping into the sending wires (to the gauge) to log the boost into DSMlink.

 

[dnhieu]

let me know how this works out. i have the prosport digital boost gauge...

 

[DSMboostin15]

It may be a while since my wallet is getting pretty thin since I lost my job. But when I do eventually get the gauges this summer, I'll post back the results for future reference.

 

[snowborder714]

Do you have any data about the sensor itself? If it's a gauge pressure sensor, it will not be able to be logged. If it's an absolute pressure sensor, it is able to be logged. However, the absolute sensor has a down side.

The only annoying part of an absolute sensor is that it doesn't naturally provide "vacuum" and "0psi" points for a boost gauge. To calculate those points, you have to "zero" the thing either manually or on startup or whatever. Basically the gauge has to be told what "0" is because there really is no "zero" with an absolute pressure sensor unless you're in a total vacuum.

I would send them an e-mail if you haven't already and ask them what type of sensor is used. Also, see if you can get any data point, calculations, etc. about the sensor. Here is an example of what I received from another gauge company when I questioned them about their sensor.

P = (V - Vamb - 0.20) * 22.55

Where:
P is the gauge pressure (in PSI)
V is the sensor output voltage at any time
Vamb is the sensor output voltage with the engine NOT running

The sensor must be powered by 5V.


Other sensors might have a chart that compares pressure related to volts.

If you do the math with the above equation, you'll notice that at 5 volts, the pressure reading would be over 100psi. This is all fine and dandy since you'll never max the sensor out, but it will not be as accurate as say an AEM 5 Bar sensor because the range is over double the size. It's nice to know I could use the above sensor for gauge and for ECMlink, but I wouldn't use it for ECMlink as the range is too big.

 

[Blurred Talon]

If it will help at all I have one of these gauges sitting here waiting to be installed. I can take an pictures you want or post wiring info.

 

[DSMboostin15]

If you could post some pics, that would be great since Prosport doesn't have any pics of the actual sensor on their website. I'll have to get in contact with Prosport about the specifics of the pressure sensor and gauge. If I cannot log the sensor, maybe the gauge is compatible with, say, the GM sensor so I don't have to have several pressure sensors lying around the engine bay.

 

[Blurred Talon]

Just snapped some pictures.

First is the actual pressure sending unit.

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The harness, sender end.

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Gauge end.

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Sender and gauge connected to each other.

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Shot of the instructions

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Now from what I know about electronics (I'd like to say I know a lot ), on the harness for the sender, black will be the ground of course, red will be the actual power for the unit (power coming from where the power side of the gauge is wired to). Leaving us with the white wire, I'm going to assume that wire is what sends the pressure info to the gauge.

You can strip the rubber coating over the whole Prosport harness but be careful as the wires are thin (22awg maybe a bit bigger). I'd then try tapping into that white wire and see what happens.

Let me know what you find out as I plan to run DSMLink too.

 

[snowborder714]

Response from Prosport. I'm not sure if this is possible to use since it's not over a 0-5v range. I'll forward this to Tom at ECMtuning and ask.

Brain,

We use baromertric pressure sensors so they are affected by elevation.

The sensor uses 0-3.5 volts

-14psi=0v
0 psi=1v
14.5 psi=2v
29 psi=3v

Hope this helps.

Ryan

 

[snowborder714]

Response from Tom.

Yeah, you can use it. It'll just have less resolution than a similar sensor that ranges over the full 5v span.

 

[airmail96]

Kind of like the AEM 3.5 bar sensor. I think it has a 4.5v output.

 

[DSMboostin15]

Hey Brian, thanks for asking about the sensor. I haven't really had the time to try and figure it out. I think that if I get some cash together, I'll get the gauge and try logging it in DSMlink.

 

[dnhieu]

someone let me know how to wire it up and ill do it!