EMERALD K3 and K6 ECUs
The Emerald K3 and K6 ECUs output data at 19200bps. When connected to the Race Technology ECU decoder the following channels are decoded:
| Byte
| Name
| Race Technology Name
| Resolution
|
| 1
| Engine Speed
| Engine RPM (RPM)
| 25 RPM
|
| 2
| Throttle position
| aux 1 (Throttle position)
| 0.1%
|
| 3
| Manifold pressure
| pressure 5 (Boost pressure)
| 0.1 kPa
|
| 4
| Ambient Air Pressure
| pressure 1 (Ambient air pressure)
| 0.1 kPa
|
| 5
| Ignition advance
| angle 2 (Ignition angle)
| 0.1o BTDC
|
| 6
| Air Fuel Ratio
| misc 1 (Lambda 1)
| 0.01 lambda
|
| 7
| Air Fuel Ratio target
| misc 2 (Lambda 2)
| 0.01 lambda
|
| 8
| Battery voltage
| misc 3 (Battery voltage)
| 0.01 V
|
| 9
| Primary Ing Time
| measured time 1 (Fuel Inj 1 PW on)
| µs
|
| 10
| Secondary Inj Time
| measured time 2 (Fuel Inj 2 PW on)
| µs
|
| 11
| Coil on Time
| measured time 9 (Coil 1 PW)
| µs
|
| 12
| Air Temperature
| temperature 1 (Ambient Air Temperature)
| 0.1 oC
|
| 13
| Coolant Temperature
| temperature 8 (Water temp)
| 0.1 oC
|
| 14
| Aux Temperature
| temperature 25 (Aux 1)
| 0.1 oC
|
| 15
| Exhaust Gas Temp
| temperature 17 (Exhaust 1 temp)
| 0.1 oC
|
Please note that on the Emerald the serial data is NOT ON STANDARD PINS, the Emerald ECU uses serial data 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
|
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