Strada MXG & WRXV11 RPM and MAP data issue.

[Rumbly.Sti]

Running into a weird issue in regards to the CAN channel for the Strada MXG display. Set up as per instructions values view correctly on the dash. With the enigne off just ACC powered on the RPM jumps from 0 - 25000 RPM flashes the shift lights and repeats constantly. The MAP values also look unstable jumping around.

 

Any thoughts?

 

One thing i did make note of is the the stream is supposed to be 20HZ from the PCLINK set up - but the dash is sampling at 10hz on most channels factory.

 

RPM is just factory sensors - 2010 STI

MAP is a link 4 bar - we have adjusted to the proper table and calibrated in the software.

[Adamw]

Attach a copy of your tune.

[Rumbly.Sti]

Ok I did get the MAP and Rpm sorted. Next issues - speed sensor and fuel level. My understanding is that the fuel level is a CAN function. On the MXG Strada the speed does not respond and the fuel level selection in Can channels in not able to be selected.

Sti V3.pclx

[cbDrift]

@Rumbly.Sti semi related question - do you have the dash cluster wiring diagram for the v11 sti at all to wire up the dash signal lights to the MXG strada dash?

[Rumbly.Sti]

@cbDrift sent you a PM with the pinout.

[Adamw]

The 4 individual wheel speeds are sent in the MSX stream.  I suspect the problem with the wheel speeds not working will be because you have the MXS stream and the DASH2PRO stream both being sent on ID 1000, so they are likely over-writing each other and causing bus errors.  Either turn off dash2pro or use a different ID.  

The ECU and dash will need a custom stream set up to use the fuel level resistance from the BCM.  

[Rumbly.Sti]

@Adamw adjusted ID'S wheel speed is working now.

 

For setting up the separate stream is there a how to you are aware of? I am a tad lost on that one.

[Adamw]

Attach your most recent ecu tune and your dash config and I can set it up.

[Rumbly.Sti]

That would be sweet. Also is there a way to bring the dccd streams forward

Sti V3.pclx MXG 1.2 Strada - LINK.zconfig

[Rumbly.Sti]

@Adamw does that config file open properly?

[Adamw]

Give these a try.  

Sti V3 New CAN.pclx Rumbly STI.zconfig

[Rumbly.Sti]

Thank you Adam - I have been playing the last hour or so. Awesome to have a fuel guage.

[Rumbly.Sti]

@cbDrift Did you wire up the signals? That's the last item to do for me. The Fuel BTW with the can channel available to the MXG is 420 Ohms Full and 5900 Ohms Empty

[Rumbly.Sti]

Hey @Adamw for the AIM back end I seem to have found a bug. Is that something that can be noted on the Link side or does that go back to AIM? This file attached has a dash profile set up that is the p22i_race dash ( the red one ) The fuel gauge does not work I have the high value set as 420 Ohms full and 6000 empty. These values work on all the other dash profiles. This dash will not respond at these settings, but if you reverse and make 420 empty and 6000 full it works backwards lol - and will show empty when its full and work down to full when its empty.

 

Any thoughts?

rumbly sti v2.aimcfg

[Adamw]

Your dash config file should have a .zconfig extension.  

[Rumbly.Sti]

Sorry Adam - grabbed the wrong file.

Rumbly STI v2.zconfig

[Adamw]

That display field expects a 0-100% or 0-** litres value to represent empty to full.  I would use a linear corrector math channel to generate this.  Setup below would convert your 6000-400ohm signal to 0-100%:

 

 

[Rumbly.Sti]

Thanks Adam - one last item lol for now. My dccd works great but the si knob does not respond it stays in sport. Is that routed CAN to the ecu or digital input - any trouble shooting thoughts?

[Adamw]

The Si drive switch is connected to the factory dash and that transmits its status onto the bus.  Is the factory dash still in place? 

[Rumbly.Sti]

That Would be why - we're using the mxg strada.

[cbDrift]

Whelp - there goes any plans I had for running a digital dash in my grb 😕

I'm guessing the center diff controller also uses the can input from the selector to tweak things to how it engages, seeing as how much of a different it made on the factory ecu to how the car handled.

Can gauge in the center airvent it is then...

[Rumbly.Sti]

@cbDrift the dccd works just fine. It's a CAN signal and shows on the dash. From what I can see the Si drive switch changes resistance to the dash and that was translated to a CAN signal. In theory you could pin the switch to an AN1-7 input on the strada and receive a signal.

 

That's what I am working through right now.....

[Spice2Rice]

On 6/10/2024 at 9:04 AM, Rumbly.Sti said:

@cbDrift sent you a PM with the pinout.

Can I please get a copy of that pinout?

[Rumbly.Sti]

@Adamw in regards to the Si Drive on the STi platform. I am working to get the factory rotary switch to act as an input on the MXG and then forward to the V11 Link Ecu. Can the input be set as latching on the AN input off the dash? It looks like I have resistors on the switch which will give us target voltages to work with if I apply 5v ( previously this was interpreted by the factory dash and sent via can ).

 

 

 

[Adamw]

This type of switch forms part of a voltage divider circuit, so you need a 5V pull-up connected to the signal wire.  Is the switch only momentary, not latching?