FAQ
there is a chance, but for sure I do not know everything! Write to me :)
I recommend also:
- Speeduino forum
- FB groups for instance Speeduino Tuning
- Speeduino GitHub
there are lots of knowledgeable people there, chance of resolution rise then
every time, together with problem description please add current settings (msq file) and logs.
any Bosch LSU4.9 or compatible sensor should work correctly. Original Bosch sensor is 0 258 017 025. There are aftermarket sensors produced by Denso, NGK/NTK, AC Delco and lots of OEM sensors that work for instance 9687161080, 30751138, 39350-2a410, 39350-4a410.
LSU4.9 sensors use ths plug 6-pin
WARNING! OEM sensors have usually shorter cable
lista zamienników (nie weryfikowałem!)
https://www.tacomaworld.com/threads/bosch-lsu-4-9-pn-cross-reference-and-compatibility.501754/
After proper installation and calibration of the harness module and sensor, AFR readings should behave as follows:
Upon powering on, the AFR in TunerStudio should be around 14.7.
approximately 20 seconds after powering on, with the engine off, the AFR should increase to 22 (the lean mixture detection limit).
(When the sensor is accessible and removed from the exhaust): With a heated sensor, bringing a lighter emitting gas (without a flame!) close to the sensor should result in an AFR reading of about 9.5. Blowing air onto the sensor should cause the AFR to rise back to 22.
You can find dyno charts from my customers here:
https://alexengineering.pl/blog/moje-speeduino-pnp-wykresy-z-hamowni/?v=288404204e3d
No! You can add display support to older Speeduino units, even ones not made by me. 🙂
https://alexengineering.pl/porady/jak-dodac-obsluge-wyswietlacza-w-speeduino/?v=288404204e3d
Yes, I also tune NC models. I use one of the alternatives to EcuTek – the free RomRaider package. Over the past few years, I’ve tuned more than 20 cars, both in Poland and abroad.
EciTek vs RomDrop comparison
Comparison of ECU Tuning Platforms for Mazda MX-5 NC: EcuTek vs. RomDrop
My priority is always the safety and longevity of the engine, even when used on the track. I don’t chase the last 1 HP or 1 Nm risking you lose your engine
Daily drivability is equally important to me, with a smooth power curve and responsive throttle behavior.
What I can tune: All engines in the Mazda MZR family, including 1.8, 2.0, 2.3, and 2.5.
You can find the results of my work here:
https://alexengineering.pl/blog/mazda-mx-5-mk3-nc-romdrop-remap/?v=288404204e3d
Bass Shakers are a fascinating solution! You can learn more about them here:
and