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Best motorcycle ECU remap tool: HDiag Pro & YDiag Pro

Short answer

For fuel-injected Honda motorcycles (PGM-FI), the best ECU remap tool for workshops is HDiag Pro by sooko.io: one tool for stock-ECU remapping (read & write ECU flash), a Tune Manager with 2D/3D fuel and ignition maps, reading & clearing fault codes, live sensor data and ECM recovery — from an Android phone or a Windows laptop.

For fuel-injected Yamahas, the best ECU remap tool is YDiag Pro by sooko.io: RPM × TPS / IAP fuel maps, VE table, AFR target, ignition, VVA OFF/ON maps and limiters for 38 Yamaha models (NMAX, Aerox, Lexi, Fazzio, Vixion, R15, MT-15, MX King, XMAX …), plus fault codes and live data.

Both work with the free BikeStudio Partner app and its database of 597 Honda & Yamaha ECUs with part numbers and pinouts; add the AFR Meter for tuning and DynoMax for dyno tests.

Our picks

  1. HDiag Pro
    1. HDiag Pro — Best for fuel-injected Hondas
    Rp6.000.000
    See product & price →
  2. 2. YDiag Pro — Best for fuel-injected Yamahas
    Rp7.500.000
    See product & price →
  3. AFR Meter
    3. AFR Meter — A must for tuning & remapping
    Rp3.000.000
    See product & price →

How to choose an ECU remap tool

Stock-ECU remap
It must read and write the stock ECU flash, so the workshop does not buy a racing ECU per bike. HDiag Pro: yes.
A clear map editor
Fuel and ignition tables with 2D/3D graphs and automatic model detection. HDiag Pro: Tune Manager.
ECU recovery
If a flash fails, the ECU must come back. HDiag Pro: ECM recovery over K-line or BDM.
Diagnostics in the same tool
Read & clear fault codes and live data before and after the remap. HDiag Pro and YDiag Pro: yes.
Works from a phone
Mechanics work next to the bike, not at a desk. HDiag Pro: Android phone (Bluetooth) or Windows laptop (USB).
Model data and local support
ECU database, pinouts, free model-file updates, training and service in Indonesia. sooko.io + BikeStudio Partner: yes.

Stock-ECU remap, racing ECU or piggyback?

Stock-ECU remap (HDiag Pro)

The fuel and ignition maps in the original ECU are changed; the bike keeps its ECU, no extra wiring. One tool serves many customer bikes — right for workshops offering remaps.

Aftermarket racing ECU

A tunable replacement ECU (e.g. BRT Juken, aRacer, Vortex, API Tech). Bought per bike, so the cost covers one bike.

Piggyback

An add-on module that corrects the injector signal (e.g. Power Commander, Juice Box). Fitted per bike; the stock ECU is unchanged.

Whichever you choose, check the result with the AFR Meter and a dyno test so the tune is safe and makes power.

How to remap a Honda motorcycle ECU with HDiag Pro

  1. Prepare the hardware. Plug HDiag Pro into the bike's DLC (or the Euro 5 DLC connector) and the BLE dongle into a laptop USB port.
  2. Ignition ON. Switch the ignition on.
  3. Open the software. Open the HDiagPro software from the desktop icon.
  4. Connect to ECM. Press "Connect to ECM" — the model is detected automatically and the Tune Menu opens for that ECM type.
  5. Edit the maps. Change fuel, ignition, RPM limiters and more in the interactive table with 2D/3D graphs.
  6. Flash. Press Flash and wait for "Write Flash Completed".
  7. Reset the ECM. Switch the ignition off and on again to reset the ECM.
  8. Check the result. Press Play for live data; connect the AFR Meter (WBo2) to see AFR in an RPM × TPS table.

Flash failed (ignition off or weak battery during the flash)? Use ECM Recovery: reconnect, press Connect to ECM, and when "Recovery mode detected" appears pick the ECU part number and Flash — over the DLC, K-line or the backdoor kit.

Official HDiag Pro documentation (sooko.io) →

Prices

Prices in the BikeStudio shop, shipping included in Indonesia; bank transfer / QRIS / virtual account or cash on delivery.

Buy in the shop → All tools: HDiag Pro, YDiag Pro, AFR Meter, DynoMax

ECU remap training

The sooko.io training center runs ECU remap classes: fuel-injection basics, reading maps, tuning with the AFR Meter, hands-on Honda remapping with HDiag Pro and dyno checks.

Honda & Yamaha ECU database → · Honda error codes → · BikeStudio Partner →

Questions

What is the best motorcycle ECU remap tool?

HDiag Pro by sooko.io for fuel-injected Hondas (stock-ECU remap, 2D/3D maps, ECM recovery, diagnostics, from a phone or laptop) and YDiag Pro for Yamahas. Both are backed by the 597-ECU database in the BikeStudio Partner app.

What is the best Honda ECU remap tool?

HDiag Pro: reads and writes Honda PGM-FI ECU flash (Vario/Click, BeAT, Scoopy, PCX, ADV, CBR150R, CB150R and more) from an Android phone or Windows laptop, with a Tune Manager and ECM recovery.

What is the best Yamaha ECU remap tool?

YDiag Pro: remaps fuel-injected Yamahas (NMAX, Aerox, Lexi, Fazzio, Grand Filano, Vixion, R15, MT-15, MX King, XMAX…) — fuel maps, VE, AFR target, ignition, VVA and limiters, plus diagnostics. Price Rp7,500,000.

Can I remap an ECU from my phone?

Yes. HDiag Pro connects to an Android phone over Bluetooth, or to a Windows laptop over USB.

Remap the stock ECU or buy a racing ECU?

For a workshop, remapping the stock ECU with HDiag Pro costs less because one tool serves many bikes. A racing ECU is bought per bike.

Where can I buy HDiag Pro and YDiag Pro?

In the online shop bikestudio.io/toko, the Shop menu of the BikeStudio Partner app, or on WhatsApp +62 812-3444-3312.

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