EMERALD K3, K6 & M3D ECUs (RS232 / Serial)
Compatibility
- Emerald M3D
- Emerald k3
- Emerald K6
Configuration
The Emerald K3, K6, and M3D ECUs output data at 19200bps.
Connections
Please note that on the Emerald the serial connections are NOT ON STANDARD PINS, the Emerald ECU uses pins 8 and 9. Race Technology understand that EMERALD supply a cable that switch over these pins with the ECU, if you are unable to locate this lead then please contact Emerald for a replacement.
| Pin Number
| Connection
| Comments
|
| 1
| CAN_H
| CAN bus interface
|
| 2
| CAN_L
| CAN bus interface
|
| 3
| -
| Not used
|
| 4
| -
| Not used
|
| 5
| earth
| Signal earth
|
| 6
| -
| Not Used
|
| 7
| Rx
| RS232 serial interface, data receive
|
| 8
| Tx
| RS232 serial interface, data transmit
|
| 9
| CTS
| RS232 serial interface, clear to send
|
Data Channel Listing
When connected to the Race Technology ECU Serial Interface, the following channels are decoded:
| ECU Message Name
| Race Technology Data Channel
| Resolution of Data
|
| Engine Speed
| RPM (Engine)
| 25 RPM
|
| Throttle position
| Throttle position (aux 1)
| 0.1%
|
| Manifold pressure
| Boost pressure (pressure 5)
| 0.1 kPa
|
| Ambient Air Pressure
| Ambient air pressure (pressure 1)
| 0.1 kPa
|
| Ignition advance
| Ignition angle (angle 2)
| 0.1o BTDC
|
| Air Fuel Ratio
| Lambda 1 (misc 1)
| 0.01 lambda
|
| Air Fuel Ratio target
| Lambda 2 (misc 2)
| 0.01 lambda
|
| Battery voltage
| Battery voltage (misc 3)
| 0.01 V
|
| Primary Ing Time
| Fuel inj 1 PW on (measured time 1)
| µs
|
| Secondary Inj Time
| Fuel inj 2 PW on (measured time 2)
| µs
|
| Coil on Time
| Coil 1 PW (measured time 9)
| µs
|
| Air Temperature
| Ambient air temp (temperature 1)
| 0.1 oC
|
| Coolant Temperature
| Coolant temp (temperature 8)
| 0.1 oC
|
| Aux Temperature
| Aux 1 (temperature 25)
| 0.1 oC
|
| Exhaust Gas Temp
| Exhaust 1 temp (temperature 17)
| 0.1 oC
|
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.
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