AEM ECU
This protocol works with all AEM ECUs except the #30-6905 EMS-4 which does not have a serial port.
For series 2 EMS systems or for the #30-6905 EMS-4 you can use the AEM CAN interface.
The AEM ECU outputs a 21 byte sequence of data at 19200 baud. From this data, the following channels are extracted.
| Name
| Race Technology Channel
| Resolution
|
| Engine speed
| Engine RPM (RPM)
| 25 RPM
|
| Engine Load
| pressure 5 (Boost Pressure)
| 1 mBar
|
| Throttle
| aux 1 (Throttle Position)
| 0.1%
|
| Air temp
| temperature 6 (Inlet post intercooler 1)
| 0.1 oC
|
| Coolant temp
| temperature 8 (Water temp)
| 0.1 oC
|
| 02-1
| misc 1 (Lambda 1)
| 0.01 lambda
|
| 02-2
| misc 2 (Lambda 2)
| 0.01 lambda
|
| ADCR8
| Analogue input 21 (Analogue 21)
| 0.001V
|
| ADCR11
| Analogue input 22 (Analogue 22)
| 0.001V
|
| ADCR13
| Analogue input 23 (Analogue 23)
| 0.001V
|
| ADCR14
| Analogue input 24 (Analogue 24)
| 0.001V
|
| ADCR15
| Analogue input 25 (Analogue 25)
| 0.001V
|
| ADCR16
| Analogue input 26 (Analogue 26)
| 0.001V
|
| ADCR17
| Analogue input 27 (Analogue 27)
| 0.001V
|
| ADCR18
| Analogue input 28 (Analogue 28)
| 0.001V
|
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