Pointz Posted April 23, 2021 Report Share Posted April 23, 2021 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. Quote Link to comment Share on other sites More sharing options...
Adamw Posted April 23, 2021 Report Share Posted April 23, 2021 For a dash 2 you will also need the race technology CAN interface. That interface has two CAN wires which connect to the two CAN pins on the ecu connector Quote Link to comment Share on other sites More sharing options...
Pointz Posted April 24, 2021 Author Report Share Posted April 24, 2021 Thanks Adam I will contact racetech and see if they can supply me one Quote Link to comment Share on other sites More sharing options...
Pointz Posted October 8, 2021 Author Report Share Posted October 8, 2021 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 Quote Link to comment Share on other sites More sharing options...
Adamw Posted October 8, 2021 Report Share Posted October 8, 2021 Can you attach a copy of your tune. Quote Link to comment Share on other sites More sharing options...
Pointz Posted October 8, 2021 Author Report Share Posted October 8, 2021 3 hours ago, Adamw said: Can you attach a copy of your tune. Yes il do it as soon as I'm home thanks Quote Link to comment Share on other sites More sharing options...
Pointz Posted October 8, 2021 Author Report Share Posted October 8, 2021 ca18det racetech.pclr Please see attached pclr Thanks Quote Link to comment Share on other sites More sharing options...
Adamw Posted October 8, 2021 Report Share Posted October 8, 2021 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. Quote Link to comment Share on other sites More sharing options...
Pointz Posted October 8, 2021 Author Report Share Posted October 8, 2021 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 Quote Link to comment Share on other sites More sharing options...
Adamw Posted October 8, 2021 Report Share Posted October 8, 2021 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. Quote Link to comment Share on other sites More sharing options...
Pointz Posted October 9, 2021 Author Report Share Posted October 9, 2021 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 Quote Link to comment Share on other sites More sharing options...
Adamw Posted October 9, 2021 Report Share Posted October 9, 2021 I didnt want the dash channel off? I said to disconnect the AEM device to check if the CAN errors go away. Quote Link to comment Share on other sites More sharing options...
Pointz Posted October 10, 2021 Author Report Share Posted October 10, 2021 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 Quote Link to comment Share on other sites More sharing options...
Pointz Posted October 10, 2021 Author Report Share Posted October 10, 2021 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 Quote Link to comment Share on other sites More sharing options...
Adamw Posted October 10, 2021 Report Share Posted October 10, 2021 Did you disconnect the AEM from the bus or power it down? Quote Link to comment Share on other sites More sharing options...
Pointz Posted October 10, 2021 Author Report Share Posted October 10, 2021 26 minutes ago, Adamw said: Did you disconnect the AEM from the bus or power it down? Disconnected from the bus but about to go power it down now! Quote Link to comment Share on other sites More sharing options...
Adamw Posted October 10, 2021 Report Share Posted October 10, 2021 Either is fine, doesnt need both. So with AEM disconnected but dash still set up you are still getting CAN errors? Quote Link to comment Share on other sites More sharing options...
Pointz Posted October 10, 2021 Author Report Share Posted October 10, 2021 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 Quote Link to comment Share on other sites More sharing options...
Adamw Posted October 10, 2021 Report Share Posted October 10, 2021 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. Quote Link to comment Share on other sites More sharing options...
Pointz Posted October 10, 2021 Author Report Share Posted October 10, 2021 Quote Link to comment Share on other sites More sharing options...
Adamw Posted October 10, 2021 Report Share Posted October 10, 2021 Im not sure what you are trying to do. CAN setup screen looks like this right? Quote Link to comment Share on other sites More sharing options...
Pointz Posted October 11, 2021 Author Report Share Posted October 11, 2021 7 hours ago, Adamw said: Im not sure what you are trying to do. CAN setup screen looks like this right? 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? Quote Link to comment Share on other sites More sharing options...
Adamw Posted October 11, 2021 Report Share Posted October 11, 2021 So you only have transmit DASH2PRO setup on channel 2, all other channels off, and you still see CAN errors? Quote Link to comment Share on other sites More sharing options...
Pointz Posted October 11, 2021 Author Report Share Posted October 11, 2021 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? Quote Link to comment Share on other sites More sharing options...
Adamw Posted October 11, 2021 Report Share Posted October 11, 2021 Yes you should have a terminating resistor at the far end of the bus. Did race technology program the ECU adapter for the Link ECU? Is the ecu interface connected like below? Quote Link to comment Share on other sites More sharing options...
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