DIY tuning/remapping with mazdaEdit and Openport

Any form of normally aspirated power mods.
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Re: DIY tuning/remapping with mazdaEdit and Openport

Post by warpc0il » Sun Jun 07, 2020 4:34 pm

The biggest difference with the R3 engine control relates to the OMP, which is a different design and runs 6 rather than 4 injectors.

The gear ratios of the R3 'box are different, though the diff ratio means that it's similar overall, but the spacing between some gears differs.

It also runs a slightly higher version of the ODB2 standard which means that;
- KOEO/KOER self-test function changed
- PID/DATA monitor function changed
- Simulation test function changed

The fan controller and it's mapping is different (with 5 relays rather than just 3), to match the characteristics of the revised water pump.

The alternator is different and as these are PCM controlled, the related tables are also different.

Revised Throttle actuator with active range monitoring.

The oil pressure increased and the oil flow circuit revised, with the filter relocated.

Cruise Control is fitted as standard.
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Re: DIY tuning/remapping with mazdaEdit and Openport

Post by 350matt » Sun Jun 07, 2020 7:54 pm

cheers Dave

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Re: DIY tuning/remapping with mazdaEdit and Openport

Post by 350matt » Mon Jun 08, 2020 9:22 pm

oh one other thing does anyone have a logger text file for logging with a SD card on the Tactrix dongle

I've found one on -line that works but I'd like one that has more channels in it? and struggling to find the PID address details for the car?

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Re: DIY tuning/remapping with mazdaEdit and Openport

Post by Paul_13 » Mon Jun 08, 2020 10:55 pm

Have a look at my build thread. Phil posted it

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Re: DIY tuning/remapping with mazdaEdit and Openport

Post by 350matt » Tue Jun 09, 2020 9:33 pm

cheers

and thats a pretty cool build thread

however that config file only has a few channels

I was hoping for a one that covered all the possibles so I could pick and choose

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Re: DIY tuning/remapping with mazdaEdit and Openport

Post by Paul_13 » Tue Jun 09, 2020 10:24 pm

I think you can modify the file. I've been meaning to do it myself

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Re: DIY tuning/remapping with mazdaEdit and Openport

Post by 350matt » Wed Jun 10, 2020 7:16 am

yes I've been trying to find a definitive list of PID's for the car

have you managed to solve your lean running yet?

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Re: DIY tuning/remapping with mazdaEdit and Openport

Post by Paul_13 » Wed Jun 10, 2020 10:15 am

350matt wrote:
Wed Jun 10, 2020 7:16 am
yes I've been trying to find a definitive list of PID's for the car

have you managed to solve your lean running yet?
No not yet. Mid way through putting a rx8 air box in

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Re: DIY tuning/remapping with mazdaEdit and Openport

Post by 350matt » Thu Jun 18, 2020 8:17 pm

So a mazda edit question

how long does it take for a remap to settle in ?
as I think I've read somewhere the ECU needs a few key on / off events to write the changes into memory

as I've found I make a change to the MAF curve and the LTFT is zero for about 20 mins and then starts to wake up
and it looks like it won't apply the changes until you've done about 3 'outings'
then I see the target lambda / AFR being met

and this is with low LTFT numbers about 2% at most
STFT obviously does its own thing ( as it does on all ECU's I've seen) being up and down by 15-20%

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Re: DIY tuning/remapping with mazdaEdit and Openport

Post by qwakers » Thu Jun 18, 2020 8:20 pm

the map adjustments apply immediately.

ltft takes a while, its all in the name LongTermFuelTrim. its the adjustments that are made over a long period of time. STFT is the fine adjustments made constantly.

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Re: DIY tuning/remapping with mazdaEdit and Openport

Post by 350matt » Thu Jun 18, 2020 8:24 pm

so am I doing the correct thing by adjusting the MAF curve then? as I've read about other approaches where the VE table is modified instead?

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Re: DIY tuning/remapping with mazdaEdit and Openport

Post by qwakers » Thu Jun 18, 2020 8:29 pm

no clue, i just get carl ryan to do it all for me :D

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Re: DIY tuning/remapping with mazdaEdit and Openport

Post by 350matt » Wed Jun 24, 2020 1:25 pm

Another related subject with regard to the SD card logging in the tactrix dongle

is there a way to get the date stamp working correctly as it only ever shows as being logged on the 31/12/2008?

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Re: DIY tuning/remapping with mazdaEdit and Openport

Post by Essex2Visuvesi » Wed Jun 24, 2020 1:32 pm

If i remember correctly theres a txt file on the SD it reads to set the date
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Re: DIY tuning/remapping with mazdaEdit and Openport

Post by Vj4sothername » Mon Oct 05, 2020 8:16 pm

Well I've taken the plunge. Any recommendations on reading material welcome as I know nothing about tuning or using mazdaedit. Been going through rx8clubs thread (my eyes are burning) to try and understand the software.

Going to tie this process in with up-skilling at work and plug the data into neural networks and regression models to try and create a package to figure out a tune based on parameter desired such as fuel eco or power etc.
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Re: DIY tuning/remapping with mazdaEdit and Openport

Post by 350matt » Mon Oct 05, 2020 10:10 pm

to be honest there's not much at all on line about how to pilot mazda edit
I ended up changing all the target lambda maps to lean it off at full power / high rpm and also richen it up a little mid range, then disabled the DTC's for the secondary air pump and removed that
also lowered the fan switch on points

then it was a case of tweaking the MAF sensor curve to reduce the fuel trims and so the car was achieving the target lambda under load
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Re: DIY tuning/remapping with mazdaEdit and Openport

Post by Paul_13 » Mon Oct 05, 2020 10:55 pm

I had a bit of an advantage as I've been messing about with MS42/MS43 BMW ecu's. Got to know tuner Pro and romraider.
Mazdaedit is very similar to them both.
Hopefully the tips I've given VJ4 will get you going. Any questions, just ask. Throttle map is well worth modifying imo
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Re: DIY tuning/remapping with mazdaEdit and Openport

Post by Vj4sothername » Wed Oct 07, 2020 10:04 pm

Well it's done. After a non starter morning when I couldn't pull the map from the car I've now been through with the mini map that RRP did the video along with their D585 dwell map and Paul's throttle map

I'll be doing a lot of logging on Sunday so I can start playing with other bits and get the excitement out of my system and start firing up some python for the less exciting bit.
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Re: DIY tuning/remapping with mazdaEdit and Openport

Post by v-rex » Wed Oct 07, 2020 10:37 pm

Vj4sothername wrote:
Mon Oct 05, 2020 8:16 pm
Well I've taken the plunge. Any recommendations on reading material welcome as I know nothing about tuning or using mazdaedit. Been going through rx8clubs thread (my eyes are burning) to try and understand the software.

Going to tie this process in with up-skilling at work and plug the data into neural networks and regression models to try and create a package to figure out a tune based on parameter desired such as fuel eco Image or power etc.
Sounds like you are already doing some deep learning.
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Vj4sothername (Wed Oct 07, 2020 11:25 pm)

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