AEM Performance Electronics CD-7 - Analog Inputs 1 - 4

43
29
Analog 7
0-5V, Thermistor, RTD input, jumper selectable (470, 2200,
100k) 5V pull-up
Nitrous Pressure Sensor
30
Analog 8
0-5V, Thermistor, RTD input, jumper selectable (470, 2200,
100k) 5V pull-up
Brake Pressure
31
Analog 9
Temperature / thermistor input, 2200 Ohm 5V pull-up
Coolant Temperature Sensor
32
Analog 10
Temperature / thermistor input, 2200 Ohm 5V pull-up
Intake Air Temperature
Sensor
33
Analog 11
Temperature / thermistor input, 2200 Ohm 5V pull-up
Oil Temperature Sensor
34
Analog 12
Temperature / thermistor input, 2200 Ohm 5V pull-up
Transmission Temp
35
Sensor Ground
Dedicated sensor ground
Sensor Ground to temp
sensors
36
5V Sensor Power
5V sensor reference power output
5v Reference Voltage
Analog Inputs 1 - 4
These inputs have a 100kOhm 5V pull-up resistor and are suitable to measure voltage signals from 0-5V sensors or
devices; either sensors that are being added to a vehicle or pre-existing (or OEM) sensors. Pre-existing/OEM
sensors are presumed to be already connected to a factory ECU or logging device which will require different wiring
considerations. Please refer to the table below for connection examples.
New / Added Sensors
5V Sensor
Power
Sensor Signal
Sensor
Ground
Examples
Three wire pressure
ü
ü
ü
Manifold pressure, oil/water pressure, etc
Three wire position
ü
ü
ü
Throttle/pedal position, linear potentiometer, etc
Three wire flow
!
ü
ü
Check with manufacturer, some MAFs require 12V power
yet output a 0-5V signal
Device
û
ü
ü
AEM 30-4110 UEGO Gauge with 0-5V Output
Existing / OEM
Sensors
Three wire pressure
û
ü
ü
Manifold pressure, oil/water pressure, etc
Three wire position
û
ü
ü
Throttle/pedal position, linear potentiometer, etc
Two wire temperature
û
ü
ü
Intake, coolant/oil temperature, etc
Three wire flow
û
ü
ü
0-5V voltage-style MAF sensor
Device
û
ü
ü
AEM 30-4110 UEGO Gauge with 0-5V Output
ü =Connect û =Don't connect
CAN Output
The measured voltage will be output via CAN and will have to be scaled to the desired units (e.g. temperature,
pressure, percentage, etc) in the receiving device. A thermistor's voltage/resistance varies non-linearly with
temperature and thus the receiving device will likely require a look-up table to properly log or display temperature.
Most non-temperature sensors require a simpler linear scaling. The AEM CD series of dashes have both of these
capabilities; please refer to the appropriate documentation.