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Racetech dash 2 and link atom connection


Pointz
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I have been reading multiple threads but not having much luck, I have purchase a racetech dash 2 and would like to connect this to my link atom via can.

What I cant figure out is what wire/connector i need to purchase in order to connect the 2 together! 

 

Any help is greatly appreciated and apologies if this has been covered previously. 

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  • 5 months later...

Long overdue update on this.

 

I have the dash all connected up using the linkecu - rt dash interface.

It is wired to the can h / can l wires from the link loom but I seem to be having a few faults on the can.

 

Form error

stuff error

Bus warning error

Bit recessive error

Receive error counter

 

And the dash doesn't seem to be receiving data from the ecu.

 

I have set it up as id1000, 20hz, etc as per guide.

 

I'd like to send rpm, coolant temp and boost pressure from ecu to dash.

 

Is it necessary to use a canser lead?

 

Has anyone successfully setup an rt dash 2? That would be happy to help out. 

 

Thanks

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It looks like you have an AEM lambda connected?  They work at 500K, not 1 Mbit.  All devices on the bus must use the same speed.  Unplug the AEM device and power up to confirm your CAN errors go away.

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1 hour ago, Adamw said:

It looks like you have an AEM lambda connected?  They work at 500K, not 1 Mbit.  All devices on the bus must use the same speed.  Unplug the AEM device and power up to confirm your CAN errors go away.

Yes I have the aem as well

 

Unplug as in kill the power to the aem?

 

I have both aem and rt dash on the can h can l wires from the atom

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Yes, you cant have 2 devices talking at different bit rates on the same bus.  Disconnect the AEM completely from the bus or power down the AEM to confirm CAN errors disappear and the dash works.  

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21 hours ago, Adamw said:

Yes, you cant have 2 devices talking at different bit rates on the same bus.  Disconnect the AEM completely from the bus or power down the AEM to confirm CAN errors disappear and the dash works.  

With dash channel off it clears some codes, this is just with wideband connected 

received_1481259352274024.jpeg

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12 hours ago, Adamw said:

I didnt want the dash channel off?  I said to disconnect the AEM device to check if the CAN errors go away.  

I'm going to do more on it later today, spoke to my tuner as my tune has gone off and he said the can errors can cause things to go open loop therefore affect the tune.

 

So I quickly disconnected the dash as I had the aem working fine prior to dash install.

 

Will update shortly thanks for your time Adam

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I have set up can channel to just the rt dash and have the following errors

 

Stuff error

Form error

Acknowledge error

Bit recessive error 

Crc error

Error passive

Bus warning

Receive error counter 127

And with both channels set to off.

 

Stuff error

Form error

Crc error

Error Passive

Bus warning

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14 minutes ago, Adamw said:

Either is fine, doesnt need both.  So with AEM disconnected but dash still set up you are still getting CAN errors?

Yes

 

I have just powered down both and have 3 errors now

 

Error passive 

Bus warning 

Receive error counter 127

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What I want is the dash only connected to the bus and powered up.  In the CAN set up, only the dash is assigned.  The AEM device disconnected from the bus and the receive user stream channel is turned off.  

After this is set up as above, do a power cycle and check if there are any CAN errors.  

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7 hours ago, Adamw said:

Im not sure what you are trying to do.  CAN setup screen looks like this right?

JuAE85g.png

Yes it does, the window i had open there was streams rather than mode.

 

When connecting the devices I should be loading a stream to there as per the help file instructions?

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1 hour ago, Adamw said:

So you only have transmit DASH2PRO setup on channel 2, all other channels off, and you still see CAN errors?

Yes that was with just the rt dash2 

All other channels set to off and aem disconnected. 

 

I am going to redo all of the can wiring from ecu to devices. And add a resistor.

The can wiring is less than 1m but if I have 2 devices running off it then I should have it?

 

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