CAFlash N54 app icon

CAFlash N54

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FLASHING Load a tune and write it to the engine ECU

By Richard Dodd · Utilities
Debuts score 74NewRate it first

Why we expect it: Thorough description and useful features make this a promising pick for dedicated BMW enthusiasts.

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In short

CAFlash N54 is a utilities app for writing tunes to BMW N54 engine ECUs. It also reads live data up to 72 channels, shows fault codes, clears adaptations, edits injector coding, and copies ISN between MSD80 and MSD81 units. It stands out for letting owners complete an ECU swap at home without sending the unit away.

Summary by Debuts, based on the App Store listing.

About

FLASHING Load a tune and write it to the engine ECU. You can select from pre-configured options for TMAP sensor type, ethanol content, O2 banks, coils, oil pressure sensor and exhaust flap control.

LIVE DATA & GAUGES Up to 72 values can be recorded from the ECU. Boost and boost target, timing for each cylinder, fuel trims, lambda, rail pressure, cam timing, knock, oil pressure and many more. You can choose to display them as gauge while driving, or save the data to CSV for later viewing using the built-in log viewer or by uploading to datazap.

LOG VIEWER Open any log you've recorded and plot it. Pinch to zoom, drag to move along the run, and drag the cursor to read every channel at one point in time.

FAULT CODES & ADAPTATION CLEARING Active and historic codes with a description of the error. Historic entries are also available for codes that have cleared. You can also clear adaptations such as battery reset (required when fitting a new battery), lambda control, injection quantity, learned variants and any other adaptation values that the ECU stores.

INJECTOR CODING Read the energy and flow values out of the ECU, edit them, write them back. You can also export the values so you can move coding between ECUs without having to write them in manually.

ISN CORRECTION Read the ISN from one MSD80 or MSD81 and write it into another. For replacing a faulty DME that still talks, or moving from an MSD80 to an MSD81. This allows users to complete an ECU swap at home without needing to send it away.

CAFlash is not affiliated with or endorsed by BMW AG.

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