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eMod011 / Adaptronic Modular plug-in ECU - S6 Mazda FD RX7
eMod011 / Adaptronic Modular plug-in ECU - S6 Mazda FD RX7

eMod011 / Adaptronic Modular plug-in ECU - S6 Mazda FD RX7

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This product is one of Adaptonic’s plug-in ECUs. Also called RX7 S6 or FD Twin Turbo.

Our main objective in creating the Adaptronic Modular ECU line is to work towards Adaptronic’s mission which is to give people control. In doing this, we came up with a system which would give people greater flexibility and at the same time, overcome the limitations of our main product line, the Select ECUs.

The RX7 S6 eMod011 ECU plugs directly into the factory loom, with additional inputs and outputs available on unused pins in the factory connector. The additional pins you have access to give you the following options:

  • An additional 2 injector outputs
  • An additional O2 input, and 2 additional 0-5V inputs for logging or other functions like sequential box strain gauges
  • Additional ignition output for conversion to direct fire
  • Oil pressure, fuel pressure and oil temperature inputs (plus we read the fuel temperature input and use that in the fuel density calculation)
  • CAN (Wideband lambda can be connected via analogue input, or via serial.)

 

What's in the box?

 

  • Engine control unit
  • USB (tuning) cable
  • 1GB USB Stick
  • Adaptronic stickers

 

 

General Features

 

  • Modular system, so that people can buy hardware upgrades later as their needs develop (eg additional inputs, outputs, or specific functions, eg drive by wire or built-in lambda)
  • Maximum output of 22 (8 ignition, 8 injector, 4 auxiliary, tacho and fuel pump)
  • 3 complementary drivers in the ECU to drive inverse outputs
  • Smooth transition to direct fire
  • Drive dual speed fuel pump
  • Injector staging is automated
  • Has an option to manually set the percentage of fuel to be delivered in secondary (or third, or fourth…) stages
  • Handle the factory pickup, the 36-1 FFE trigger with the factory sensor, and the 36-1 FFE trigger with a Hall effect sensor
  • Great twin turbo control
  • Fast USB communication, requiring no drivers
  • Headphone port for listening to the knock sensor while tuning
  • 4 x serial ports
  • 1 x CAN port
  • Power over USB to do loading of maps, firmware etc without having to provide it with 12V power
  • 32MB of onboard logging to flash
  • Exception logging, able to detect faults and log a bunch of things that happen around the same time to help with ECU setup and tech support
  • Tested to MIL-STD-202G, a military vibration standard, which varies the frequency and peaks at 7.5g of oscillating acceleration

Features / Specifications

 

Variable Number Details
Analogue 0-5V inputs 11 Each is 0 – 5.5V, 55k input impedance

 

  • 2 x TPS / pedal position
  • 6 x pressure – Oil, Fuel, Internal intake MAP, internal exhaust MAP, external intake MAP, external exhaust MAP
  • 3 x spare for servo feedback / external inputs
Analogue oxygen sensor inputs 2 Each can be either:

 

  • 0 – 5.5V, 55k input impedance
  • 0- 3.3V, 1M input impedance
Temperature inputs 4 Each is 0 – 5.5V, 55k input impedance to ground
Each can be:

 

  • Non-biased, eg in piggyback mode. Calibration is in mV
  • Biased, calibration is in Ohms. 3 internal pull-ups, 1k5, 2k2, 4k7, automatically selected by the ECU

Manifold air temperature, coolant temperature, oil temperature, fuel temperature
Crank trigger inputs 3
  • Selectable 2k2 pullup (on in digital mode, off in reluctor mode)
  • Variable voltage trigger threshold from 0 to 65V – either arm input for reluctor or threshold for digital input
  • AC coupled zero crossing trigger in reluctor mode
  • Variable filtering 1 to 192 µs
  • See built-in scope section
Vehicle speed input 1
  • Selectable 2k2 pullup
  • Variable voltage trigger threshold from 0 to 65V
  • Variable filtering 1 to 192 µs
  • See built-in scope section
Sensor power and ground
  • 5V regulated output for sensors, max 100 mA, current limited (voltage is monitored by ECU)
  • Sensor ground connected to ground inside ECU under firmware control to detect external ground loops in the wiring (voltage is monitored by ECU)
Knock input 1
  • 50 k input impedance
  • Sampled at 80 kHz (12-bit resolution, 3.3V peak to peak max voltage),
  • Variable second order highpass and lowpass filters
  • Selectable start and end of sampling windows (in crank angle)
Wired Outputs 2
  • Dedicated outputs for tacho and EFI relay/Fuel pump
  • Tacho output has inductor to generate back-EMF spike for impulse tachometers.
  • EFI relay output can be configured as fuel pump or EFI relay. Switches to ground, current limited to 600 mA
Headphone output 1 Mono output, can be selected as direct knock input or filtered knock input
Power sources 3 ECU can be powered by 12V EFI input, ignition switch, or USB (USB for settings / firmware upgrades / log retrieval only; 12V must be applied to read inputs)
CAN channel 1
  • Up to 1 Mbps
  • Internal 120 Ohm terminating resistor can be turned on and off with ECU setting on each channel
USB connection 1
  • Standard USB mini AB connector.
  • 12 Mbps max speed
  • USB appears as mass storage device (USB stick); no drivers are necessary
  • Software installer included on mass storage device
Serial connections 4
  • All 4 use 4-pin Molex connectors
  • 2 x serial in (ground, transmit, receive)
  • 1 x serial out (ground, transmit, receive)
  • 1 x controller out (ground, transmit, receive and 12V switched, current limited power) – eg for dash, hand controller


    Inbuilt sensors
    • Microphone
    • 3 axis accelerometer
    • 3 axis rate gyro
    Inbuilt logging 32 MB
    • Max 30 hrs @ 10 Hz, 13 channels
    • Min 20 mins @ 100 Hz, 125 channels
    Exception (fault) detection 16 MB Separate logging memory for storing logs during “exceptions” (sensor / trigger faults etc)
    Built-in scope 4 channels
    • Max sample rate 200 kHz (5µs sample period)
    • 1000 samples per screen (min 5ms across the screen)
    • Analogue trigger inputs sampled at 40 kHz

    Channels include

    • Analogue CAS inputs
    • Peak detected CAS voltages
    • CAS threshold voltages
    • Filtered CAS inputs
    • Analogue external inputs
    • Raw and filtered knock waveforms
    • Current engine angle
    • Calibrated input values
    • Intermediate calculation values
    • Output calculated values
    Main loop execution speed Variable depending on tuning mode and corrections enabled, 400 Hz nominal

     

     

    Number of injector outputs 8
    • Switching topology for low heating
    • Peak and hold current waveforms
    • Programmable peak and hold current
    • Max current per channel 4A continuous
    • Nominal current per channel 1A
    • Unused injector outputs can be configured as auxiliary outputs, PWM capable, but only switching to ground
    • Output voltage and current monitored
    Number of ignition outputs 8
    • Appears as a 470 Ohm to supply when high, short to ground when low
    • Current limited output
    • Unused injector outputs can be configured as auxiliary outputs, PWM capable, but only switching to ground, and only low current
    • Voltage and current monitored
    Number of aux outputs 4
    • Push-pull outputs (can drive high or low)
    • High side current limited to 1.2A
    • Low side current up to 4A continuous
    • Can be PWM but not engine synchronous
    • Voltage and current monitored
    Hardware upgrades 2
    • Small Modules ( analogue input, real – time input, drive – by – wire control and output module)

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