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ECUType / AutronicSM4UpToV107

Autronic SM4 up to v1.07


  • Autronic SM4


The Autronic SM4 running on the following firmware versions, streams data out automatically at a rate of 19200baud.

  • Up to v1.07


This ECU should be connected via serial / RS232 connections.

  • The ECU is supplied with a serial cable:

Connect this to the Race Technology ECU Interface, Data Logger or Dashboard.

Data Channel Listing

ECU Message Name Race Technology Data Channel Resolution of Data
RPM RPM (Engine RPM) 25 RPM
Coolant temp Coolant temp (temperature 8) 0.1 oC
Charge temp Inlet post intercooler temp (temperature 2) 0.1 oC
Intake air temp Ambient air temp (temperature 1) 0.1 oC
Manifold pressure Boost pressure (pressure 5) 1 mBar
AF ratio Lambda 1 (misc 1) 0.01 lambda
Injection time Fuel inj 1 PW (aux 6) 1 ms
Ignition angle Ignition angle (angle 2) 0.1o
Battery voltage Battery voltage (misc 3) 0.01 V
Throttle position Throttle position (aux 1) 0.1%

Not all channels listed in the table above may be available from your ECU. The available data channels vary with the vehicle model, year of manufacture & connected sensors.

Page last modified on August 19, 2020, at 12:49 PM