Latest versions of Autronic Autotune & manual tune software. (requires x 32bit code support), All SM3, SM4, EVO9 & Subaru – ECUs, Download. Select Manufacturer “Autronic” Model “SM4”. Refer to Race Studio Configuration user manual for further information concerning the loggers configuration. Autronic SMC Manual ver 6. Software. PC hardware requirements. The calibration and data logging software supplied with Autronic SMC ECU may be used.

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Tag item You can tag cells so that only those cells are edited via tagging functions. This calibration uses the same engine coolant temperature calibration sites as chosen for the warm up enrichment calibration table above. Once you have fixed all the coloured cells in the mixture table, you close the data log by autronkc key Q, reset the datalog under menu Logger and Autroniv logger reset. Connecting a regular lambda sensor direct to the unit will not help the tuning, it can only be used when running CLC on a fully tuned engine.

It only helps auhronic engine when it comes into the full power zone. But for now we set it to all zeros. If the control pressure is taken from after the throttle, there will be excessive, uncontrolled backpressure at mid throttle affecting both power output and also the mapping accuracy.



The startup zone and the forbidden zone must be estimated. Once a suitable position has been located for the air temperature sensor a hole should be drilled and tapped to accept the sensor. This is shown as a yellow cell. Connect the cam sync sensor; The cam sync sensor can be a hall sensor type autroniv a inductive type.

Typical values are, Over boost margin 50kpa, Over boost time auyronic to 2 seconds. The boost offset table are used to correct this. IAC dither Special function.

The actual fuel flow necessary by injectors and pump are likely to exceed a figure derived this way. Ignition timing during initial RPM when starting. Throttle limit learning must be performed each time a new throttle stop setting is set. When manifold sensor not connected to the manifold OR you have a seperate baro sensor, set “Baro update” to “Sensor” else use the “Baro press estimate”.

Always wire them in firing order.

Launch control strategy – Manual transmission – SM4 – Autronic MRM Forum

We set the fuelling in this zone to assure that the engine will not come out of the spoolup with a debt in fuel that cause starvation all the way up in the full power zone. You can also weld an extra mount for tuning with an Autronic analyser.

A function that is inverted will be on even if the wire is not connected at all and when grounded off.


Do not change values until base fuel table is fully mapped. Below is how the different zones work with the engines fuelling. Sensing circuitry adapts to Reluctor signals ranging from manjal. Repeat this on cylinder three in the firing order, looking for three marks.

Click here to open MRM Racing SM4 manual

Over-run is deceleration with closed or very small throttle openings. Maximum ignition timing allowed. One is suitable for the connection of a Digital Airflow meter or Digital Flex-fuel sensor.

Two dedicated PWM outputs 9. Some of the starvation can be handles by TPS acceleration enrichment. Setting Boost range lower than what the valve can regulate will make the boost control more responsive, but at the same time manuall regulated boost pressure will be a bit rough.

It is important to choose the correct injector for optimum system performance. Installation Guide Sensor and device pin outs. Contact Autronic if upgrade to current revision is required. In some engines only one temperature sensor hole exists and is used for the dashboard gauge sender.