When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
I believe ABS is its own box and not controlled by the ECU. But I am not certain on this.
I don't think I have seen anything in the stock roms that Speeps has patched with tables for ABS functions.
You would have to contact Haltech to check though. I know it does work with CANBUS and the stock gauge cluster works. The big issue is finding the ecu connector to make a PNP harness. I believe pulling a Mazda3 ECU from the junkyard and pulling the connector off is it how people have been doing it.
Haltech has OEM CAN integration and supports the OEM Mazda CAN protocol for the NC.
As has been mentioned above, the PnP aspect is the most challenging part of the installation and since the only option relies on cannibalizing a factory ECU, Haltech will never offer it as an official product. However, I'm considering offering it as a service.
I'm working on a PnP harness for @jpreston GLTC car at the moment. As a rough prototype, several things may change between what you see, and what we come to market with, but here is a general idea of what you end up with:
EDIT: And since my membership has lapsed, and my custom label has disappeared, it's probably worth mentioning who I am, and what I do. I'm the US Marketing Coordinator and resident Miata Nerd at Haltech.
There is also a PNP in development from Motorsport Electronics the ME442. There is a pre order through Fab9 that we are waiting on though they said that it should be close (within next month but who knows). I think they had the same problem as Haltech in finding out what to do with Mazdas proprietary connector. My brother has a 2008 PRHT and the only thing that swayed me from going the Haltech route and making my own harness was figuring out the wizardry with the hardtop circuitry. ME claims that their unit will come with all of that sorted.
There is also a PNP in development from Motorsport Electronics the ME442. There is a pre order through Fab9 that we are waiting on though they said that it should be close (within next month but who knows). I think they had the same problem as Haltech in finding out what to do with Mazdas proprietary connector. My brother has a 2008 PRHT and the only thing that swayed me from going the Haltech route and making my own harness was figuring out the wizardry with the hardtop circuitry. ME claims that their unit will come with all of that sorted.
What is the ecu doing to control the hardtop? Is it supplying an output based on VSS so you can't fold the top at speed?
I honestly don't have tons of information about it and that kinda scares me. If the whole ME thing ever comes around (it seems like we've been waiting forever but they are saying its close) we're going to be part of the first round of them I think. My tuning experience comes from a trubokitty diy MS3x and a bit of ecutec stuff with some FRS/BRZ friends. I don't know about the whole canbus system the NC uses and how that relates to the PRHT nonsense haha. I know its so integrated into everything that if the window switches aren't functioning the hardtop won't actuate using the factory ECU. My brothers plans are to get the ECU up and running on the stock 2.0 and then progress to a 2.5 and later this year turbo that. I'm really going to be cutting my teeth with whatever I end up using though I have seen two or three people successfully using Haltechs to run their MZR. I'm not too fussed about losing cruise control if there's not already a solution. We're just looking for something a bit more robust than fiddling around with reflash tuning.
What is the ecu doing to control the hardtop? Is it supplying an output based on VSS so you can't fold the top at speed?
It's my understanding that's pretty much it... and Haltech supports that functionality. Although I think it replicates OEM behavior instead of making it adjustable. Which is reasonable I think. A safety issue.
It's my understanding that's pretty much it... and Haltech supports that functionality. Although I think it replicates OEM behavior instead of making it adjustable. Which is reasonable I think. A safety issue.
Right so not a reason to skip haltech if you have a PRHT.
Haltech Elite series also supports cruise control on a DBW system like the NC correct? The ME solution does not.
Yes we were originally going to use an elite 1500 until I looked into the PRHT stuff and how much it was integrated into the CAN system but a DM with ChrisLol just confirmed that they replicate the factory CAN protocol so in theory it should work as intended from the factory. I think that will be the way we end up going because we've already had issues with communications with ME. I'd much rather just make a patch harness for the Haltech than to deal with being a beta tester for Fab9 and ME.
edit: **The reason we ended up not ordering a 1500 in the first place is that the rep that my brother spoke with said they didn't support the NC at all**
Standard ECU controls ABS so a new standalone would need ABS programming if I want to go that way.... costly. It may be possible to butcher a standard MX-5 NC ECU for the plugs but Haltech (for example) say they won't do it.... Same applies to Motec ECU - no ABS unless I want to cough up for the programming....Do I really want ABS,and a functioning instrument console? Yes. Don't need all the additional stuff .. data logging etc that Motec for example provides. I just want the thing up and running, with ABS for wet weather track work...and to outbrake other MX-5s that don't run ABS....
Standard ECU controls ABS so a new standalone would need ABS programming if I want to go that way.... costly. It may be possible to butcher a standard MX-5 NC ECU for the plugs but Haltech (for example) say they won't do it.... Same applies to Motec ECU - no ABS unless I want to cough up for the programming....Do I really want ABS,and a functioning instrument console? Yes. Don't need all the additional stuff .. data logging etc that Motec for example provides. I just want the thing up and running, with ABS for wet weather track work...and to outbrake other MX-5s that don't run ABS....
According to Speeps here the ABS module is separate from the ECU.
My understanding is that the NC ABS module is similar to the PRHT controls-- both are standalone modules BUT they need to see some signal (probably just VSS for both) from the CANBUS to function properly.
2-3 guys in Europe/Australia have already run Elite 1500 with full custom wiring harness and confirmed that the NC ABS does work with the Haltech CAN programming. Same is true for the gauge cluster.
I could agree it maybe needs something over CAN. Not sure what exactly, unless ecu VSS is not done off a wheel sensor. I assume the ABS module already gets in speed from all 4 wheel sensors.
Speeps would be a good person to ask in the thread I linked to. He is hacking away at the stock ECU and has it figured out and making changes.
I really think in about 6 months self tuning the stock ECU is going to be very easy to do, and have a ton of good features.
You're right, it's probably not VSS. I was thinking there was a speed sensor on the transmission that maybe the ABS pump needed to see, but I just skimmed the parts and wiring diagrams and didn't see that sensor.
I've read and been told many times that all of the pro race NCs that ran Motec ECUs used the non-DSC 2004 RX8 ABS pump because it's the only one that will function without the factory ECU CAN signals.
07-29-2020, 07:11 AM
0
