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BeerMoneyMotorsports wrote: ↑

Thu Feb 17, 2022 4:21 pm

if you plug the kia tps right in, you will find that the calibration values are backwards due to the switched wires but it works perfectly fine.

Thanks, and I'll still have to remove the R22 resistor?

So in this thread:

https://rusefi.com/forum/viewtopic.php?t=1908

It looks like I have to switch two pins around, and remove the R22 10k resistor?

If I just get the popular BMW TPS (used on speeduino and MS), will it work without having to do the above mods?

Thanks

Guys,

To use the Kia TPS, do I have to switch wires/pins around? I think I read that somewhere but for some reason I can't find the info.

Thanks

Hi All,

Does this ECU have the capability of using an output for boost control?

BeerMoneyMotorsports wrote: ↑

Wed Nov 24, 2021 2:27 am

Its mre pin 35 or GP1 i think. What do your options look like? I have played with mre48 in a bit.

Looks like pin 35 is GP1?
Here is an example of my tune:
https://rusefi.com/online/view.php?msq=634

BeerMoneyMotorsports wrote: ↑

Tue Nov 23, 2021 6:53 pm

Im not sure on your base map. You will see Fuel Pump under the Base Engine menu.

It looks like its disabled, which Pin and pin mode should I select?

The firmware has a section for the fuel pump control that will allow the ecu to power the fuel pump relay for priming and then whenever it sees rpms. I believe you need to go from 2T on the ecu to 2O on the chassis side. Easy with your boomslang. Then jumping the maf connector. image.png Awesome! T...

Hi All, My car is officially turbo'd with a GReddy turbo kit. I would like to look into deleting the AFM and I have some questions: I'm assuming the fuel pump pins have to be jumped at the connector? If so, does the MRE ECU control the fuel pump or should I look into an aftermarket fuel pump relay t...

Andrey, The 5V USB power through 2J works for me (in the MRE48 page it says it was untested), I plan to solder a permanent Micro USB female plug to the harness so that I don't have to worry about cutting a hole in the cover or vibration causing strain on the Micro USB port on the board it's self. I ...

When I want to change to MAP, is the only setting I change in "Base Engine Settings > Fuel Strategy > Speed Density" ?

I am finally going to be able to start learning TunerStudio now that the car is starting properly!

Success!! I removed JP58 and JP59 and jumped JP53 and JP57 Set my injector settings to sequential. It started right up, and sounded much better (normal) than before. Log: https://rusefi.com/online/view.php?log=337 Tune: https://rusefi.com/online/view.php?msq=634 My next steps: - Configure for MAP an...

Ok guys I hooked up the MRE48 again and did the Bench Test, I can hear clicking injectors when I went through each one. I just can't tell which ones are clicking.

Can I try moving the jumpers?

Also found on the MS3X pinout:

Thanks, I will do the bench test a little later, still pretty early here in CA :lol: So I have not had luck finding a 93 California specific ECU diagram, but I think I may have found the answer on Flyin' Miata's Voodoo box installation instructions on page 2 and 3. https://www.flyinmiata.com/support...

Here is the pics of my board.

Do you mean top right with the connector pointing up or down?

Thanks

Ok thanks, I actually have an AEM wideband AFR gauge installed for my future turbo project, I just have to wire the output to the o2 wire going to the ECU. I did make one interesting discovery doing some research. My miata is a 1993 California model. Apparently this 93 CA model is the first 1.6 miat...

I reset the board to the base map, corrected the MAF pin as suggested earlier in the thread and let the car warm up really good with the stock ECU.

I currently do not have a wideband installed, it's running on the stock o2 sensor.

Thanks,

Ok, I was able to get it to start, after 3 cranks, ran rough.

Please see logs and tune:

log: https://rusefi.com/online/view.php?log=335

tune: https://rusefi.com/online/view.php?msq=631

Thanks for the help!

Hi Andrey,

I hope you are doing well! I want to add that the car runs perfectly fine when I put the stock ECU back in, so I don't think it's a spark or fuel delivery issue, I'm thinking it's something with the tune or board?

Thanks

Hi guys,

Can anyone check out this log and help me with no start?

Log: https://rusefi.com/online/view.php?log=196

Tune: https://rusefi.com/online/view.php?msq=481

Thanks, hoping to get this running soon.

Not sure what I've done but I have had no luck getting it to start again. I've loaded my original tune without the VE adjustment and made sure the MAF pin was set correctly but the car just keeps cranking.

AndreyB wrote: ↑

Fri Apr 09, 2021 8:38 pm

Log cool, please post tune?

https://rusefi.com/online/view.php?msq=481

Thanks Andrey

Ok guys, I adjusted the VE, and then it ran a little rough still, and would almost die as I gave it throttle. I then turned it off so that I can get a Log started but could not get the car started again. Here is the log: https://rusefi.com/online/view.php?log=196 I plugged in the stock ECU and it st...

Hi guys, trying to get back into this project.

When removing the stock AFM and using a GM IAT, does the fuel pump pins have to be jumped at the connector? If so, does this mean the fuel pump will always be running when the car is on or is there another method of control?

Thanks!

Hi All, So I took a break from this during the Holidays, I will be getting back into it this week hopefully. I purchased an AEM AFR Wideband gauge and sensor and will be putting that in as well. Andrey: You mentioned there are pinout mods needed for the reverse Kia TPS? Are the instructions availabl...

I've always suspected my car for some reason is running rich, even with the stock ECU. Gas mileage is not great and there is a stronger fuel smell when warming up. Would a bad O2 sensor be causing this?

The throttle was not cracked, I just started the car like normal and left the throttle closed.

I'll try your suggestion tomorrow and report my results.

Thank you for all the help

Thanks guys!

Changing the PIN got it to start, it just ran really rough. Here is my log:

https://rusefi.com/online/view.php?log=77

Thanks Andrey,

I uploaded the tune and log when cranking:

https://rusefi.com/online/index.php?vehicleName=Sals+Miata&user_id=1359&sorts[uploadedMsq]=-1&sorts[uploadedLog]=-1