littlefeck Posted September 11, 2019 Author Report Share Posted September 11, 2019 The stock ecu sends a signal to bypass the starter solenoid if immobiliser is not happy. You may need to ground this wire. Quote Link to comment Share on other sites More sharing options...
littlefeck Posted September 11, 2019 Author Report Share Posted September 11, 2019 Do you still have the stock ECU connected? Quote Link to comment Share on other sites More sharing options...
Benginetuner Posted September 11, 2019 Report Share Posted September 11, 2019 Ooh, do you happen to know which wire? That'll be the easiest way. Yes stock ecu still connected for now so my gauge cluster works, but I want to remove it and use the link to control the dash. I found the can protocols on here from Adam in another thread Quote Link to comment Share on other sites More sharing options...
alexjohn Posted November 4, 2019 Report Share Posted November 4, 2019 HI ADAM ask some question about the alternater wiring ?the d1 wiring to alternater light is right? Quote Link to comment Share on other sites More sharing options...
Adamw Posted November 4, 2019 Report Share Posted November 4, 2019 The charge light is controlled by Virtual aux 2. In that example map I attached earlier it is set to switch on the light if battery voltage is below 12V. Quote Link to comment Share on other sites More sharing options...
Benginetuner Posted November 4, 2019 Report Share Posted November 4, 2019 Just an update on this thread that I've learned about. The odometer doesn't count up distance covered. Apparently there’s a counter coming from the stock ECU to do the odometer, plus another message the ECU sends out to configure the ABS. The message differs depending on region though (UK, Aus, and USA are all different). Quote Link to comment Share on other sites More sharing options...
Careless Posted February 19, 2020 Report Share Posted February 19, 2020 I'm trying to open the uploaded RX8 CAN example file with both PC Link G4 and G4X, and I get an unable to open error. Do I need an ECU attached just to view how the CAN functionality of this standalone operates? Quote Link to comment Share on other sites More sharing options...
Adamw Posted February 19, 2020 Report Share Posted February 19, 2020 The .pclr file attached earlier is for a G4+ ecu, you will need PC Link G4+. Get V5.6.7 Quote Link to comment Share on other sites More sharing options...
cole watson Posted December 18, 2020 Report Share Posted December 18, 2020 Here's an update on some info I've found from a guy who is doing an EV conversion. he has done a lot of decoding to get his project working. His Youtube channel if full of useful info. He's using Arduino but hopefully we can use his info with our ECU's. here's some links to his stuff. GitHub Page: https://github.com/DaveBlackH/MazdaRX8Arduino Youtube explaination on RX8 BUS: Full Youtube channel: https://www.youtube.com/user/horndoggie999/videos Cheers. RX8CanBus20-05-2020.xlsx Quote Link to comment Share on other sites More sharing options...
666_180sx Posted November 25, 2021 Report Share Posted November 25, 2021 Has anybody tried using this can config on a g4x, I cant get anything to the dash to work. Ive attached a copy of the map. Jareds RX-8.pclx Quote Link to comment Share on other sites More sharing options...
Adamw Posted November 25, 2021 Report Share Posted November 25, 2021 Try this, I have made a few changes to suit the G4X scaling and a few other fixes. JaredsRX-8 V1.1.pclx Quote Link to comment Share on other sites More sharing options...
666_180sx Posted November 29, 2021 Report Share Posted November 29, 2021 Hi adam, Ive tried that updated map with no luck, I cant get anything on the dash to work, I cant even get the wheel speed sensors to read anything in the ecu. Ive triple checked the canbus wiring and even changed it round just to be sure. Not sure what else to try. Quote Link to comment Share on other sites More sharing options...
Adamw Posted November 29, 2021 Report Share Posted November 29, 2021 The CAN setup is now close enough that the vast majority of stuff should be working. It would suggest a wiring issue. With the ign switch off, what is the resistance measured between CAN H & L? Unplug the ABS and measure between CAN H/L there. Quote Link to comment Share on other sites More sharing options...
666_180sx Posted November 29, 2021 Report Share Posted November 29, 2021 The resistance between the CAN H and L is 60 ohms at the ecu end and at the ABS plug. Quote Link to comment Share on other sites More sharing options...
Adamw Posted November 29, 2021 Report Share Posted November 29, 2021 Ok, that sounds about right. It is a bit hard to diagnose much further from here, you would really need to connect a scope or sniffer to see what is going on. Quote Link to comment Share on other sites More sharing options...
cole watson Posted June 6, 2022 Report Share Posted June 6, 2022 Hey Adam, I see AiM PDM32 has a odometer counter and can output custom vehicle CAN, do you think this would suffice to get the ODO function working on the factory dash or will this only work with the AiM dashes for the PDM32? While we're at it, I have been tossing up between a few PDMs recently, I've got it down to my top 3 so far. Moristech P30, Hardwire PDM25+ or the AiM Pdm32 They all seem to have similar costs. Would you have any recommendations Particularly in my street driven application? Cheers. Quote Link to comment Share on other sites More sharing options...
Adamw Posted June 6, 2022 Report Share Posted June 6, 2022 I dont know specifically what format the RX8 uses for the ODO signal. I dont come across ODO in CAN streams very often but on the couple of cars I have it is just a counter that increments by 1 every say 10M, then when it gets to 255 it rolls back to 0 and starts again. So you would need to know exactly what you have to recreate before you could conclude if any of these devices could do it. Of the 3 PDM's you mention, they are all pretty capable. I suggest you play around with each software and try to set up some basic functions to get a feel for them. I probably have example configs for all of them if you need something to play with. Moristech: Be aware it cant use a CAN keypad in standard configuration, it is an extra cost option if you want Keypad integration enabled. The software has some quirks but it does work ok when you get used to it. The Hardwire one I havent had much to do with but I have helped set up a couple remotely. Again a few quirks in the software that make it a bit frustrating to set up. For example you have to drill down through about 3 different menus/windows to get to a basic common setting for some functions. The Aim seems ok. It was quite buggy when first released but seems to have been improved a lot since then and I havent heard many complaints recently. Limited to Blink Keypads only, and if you have a keypad then 1 CAN bus is dedicated to the keypad and can do nothing else. Quote Link to comment Share on other sites More sharing options...
Laminar Posted October 3, 2023 Report Share Posted October 3, 2023 For those interested, this guy has figured out the CAN signals needed to increment the RX-8 odometer by writing some code in an Arduino. Not sure if that can easily be translated over to the Link but it's a start. RX8 Project – Part 20, Canbus #5, RX8 Odometer – Chamber of Understanding Quote Link to comment Share on other sites More sharing options...
Adamw Posted October 4, 2023 Report Share Posted October 4, 2023 The excel document halfway up this page suggests the ecu just reads the odometer tick from 0x4C0 and sends it out on 0x420, so possibly quite simple if that is correct. Otherwise, since it is only 1 byte wide I would suspect it will just increment by 1 bit per fixed distance such as 0.1M, then rollover when it gets to 255. G4X can calculate distance, G4+ cant. Quote Link to comment Share on other sites More sharing options...
Laminar Posted October 6, 2023 Report Share Posted October 6, 2023 On 11/24/2021 at 10:05 PM, Adamw said: Try this, I have made a few changes to suit the G4X scaling and a few other fixes. JaredsRX-8 V1.1.pclx 395.87 kB · 36 downloads Here's what I see in the above file: R/W Address (dec) Address (hex) Start pos Data Read 1200 4B0 0 LF wheel 16 RF wheel 32 LR wheel 48 RR wheel Write 513 201 0 rpm 32 wheel speed 1056 420 0 ECT 32 Oil light 40 CE Light 48 Charge light 512 200 0 0 8 0 16 255 24 255 32 0 40 50 48 6 56 129 514 202 0 137 8 137 16 137 24 25 32 52 40 31 48 200 56 255 Looking through this CAN setup, I have a couple of questions - based on the Blackhurst spreadsheet, the Chamber of Understanding blogs, and my own CAN sniffing, I don't see any messaging on (dec) addresses 512 and 514 (hex 200 and 202). Based on the linked config, streams 4 and 5 are written to those addresses, but I'm not sure what they're doing. Does anyone have more insight on that? My XtremeX comes in this weekend so I'll be able to test for myself soon. Quote Link to comment Share on other sites More sharing options...
Adamw Posted October 6, 2023 Report Share Posted October 6, 2023 3 hours ago, Laminar said: Looking through this CAN setup, I have a couple of questions - based on the Blackhurst spreadsheet, the Chamber of Understanding blogs, and my own CAN sniffing, I don't see any messaging on (dec) addresses 512 and 514 (hex 200 and 202). Based on the linked config, streams 4 and 5 are written to those addresses, but I'm not sure what they're doing. Does anyone have more insight on that? My XtremeX comes in this weekend so I'll be able to test for myself soon. Bottom of my post here shows those. It came from one of the EV forums, some models require these dummy messages to start up the steering pump. The rally car I done came to me without an OEM ecu so I couldn't sniff anything myself, but it did need these. Quote Link to comment Share on other sites More sharing options...
Laminar Posted October 10, 2023 Report Share Posted October 10, 2023 Gotcha. I’m not running the RX8 EPS so I should be able to do without those lines I think. Quote Link to comment Share on other sites More sharing options...
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