AEM XWiFi Wideband UEGO EGT Controller 302067 User Manual

 
 
 
 
AEM Performance Electronics 2205 126th Street Unit A, Hawthorne, CA. 90250 Phone: (310) 484-2322 Fax: (310) 484-0152 http://www.aemelectronics.com Instruction Part Number: 10-2320 Rev 01  2009 AEM Performance Electronics 
 
Part Number 30-2320  
AEM X-WIFI UEGO/EGT Module 
Figure 1.  Wiring Schematic 
AEM X-WIFI Parts 
1 x 30-2320 X-WIFI Module  
1 x 30-2001 UEGO Sensor 
1 x 35-8535 Install Kit (UEGO Bung and 6 Butt Connectors) 
1 x 10-2320 Installation Instructions 
1 x 35-3416 8-Pin Power...

Page 2 
INSTALLATION 
 
1. Disconnect the negative battery cable. 
2. Find a suitable, in cab, mounting location and secure the X-WIFI module using 
the supplied zip ties.  Note: The X-WIFI is not weatherproof and should not be 
mounted in the engine bay or exposed to outside elements 
3. Plug the 8-pin power harness into the mating connector on the right side of the X-
WIFI and connect the wires as shown in Figure 1.   
4. Mount the UEGO sensor as shown in figure 3. 
5. Connect the sensor to the X-WIFI...

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Displaying Data with WIFI Enabled Electronic Devices 
 
Real time AFR and EGT data from the X-WIFI can be viewed on WIFI enabled 
electronic devices using a standard web browser.  Locate the network “AEM X-WIFI” 
and connect.  Type the address 192.168.3.88 in the address bar of the browser and 
open the web page.  A screen showing the AFR and EGT values will appear as shown 
below in Figure 2.  If a UEGO sensor error is detected, the AFR value will display “Err” 
followed by a number.  The number...

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Status Lights 
 
The AEM X-WIFI has two status lights, see Figure 4.  The warm up status light on the 
left flashes during sensor warm up.  Once the sensor reaches operating temperature, 
usually within 30 seconds, the light will remain on.    During sensor warm up, AFR 
readings may not be accurate.  The UEGO error status light on the right will flash if a 
sensor error is detected.  The status light will flash on and off a number of times, 
followed by a short pause.  The error codes are...

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VOLTS LAMBDA AFR GAS 
AFR 
METHANOL AFR E85 
AFR 
ETHANOL 
0.50 0.58 8.5 3.7 5.6 5.2 
0.71 0.61 9.0 3.9 5.9 5.5 
0.92 0.65 9.5 4.1 6.3 5.8 
1.13 0.68 10.0 4.4 6.6 6.1 
1.34 0.71 10.5 4.6 6.9 6.4 
1.55 0.75 11.0 4.8 7.3 6.7 
1.76 0.78 11.5 5.0 7.6 7.0 
1.97 0.82 12.0 5.2 7.9 7.3 
2.18 0.85 12.5 5.4 8.2 7.7 
2.39 0.88 13.0 5.7 8.6 8.0 
2.61 0.92 13.5 5.9 8.9 8.3 
2.82 0.95 14.0 6.1 9.2 8.6 
3.03 0.99 14.5 6.3 9.6 8.9 
3.11 1.00 14.7 6.4 9.7 9.0 
3.24 1.02 15.0 6.5 9.9 9.2 
3.45 1.05 15.5 6.7 10.2...

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AEM EMS P/N 
Lambda 
#1 Pin 
Lambda 
#2 Pin 
Sensor 
GND Pin 
30-1000/1001/1002/1040/1042 D14 D16 D21 
30-1010/1012/1050/1052 C16 A23 C18 
30-1020/1060 D7 D14 D12 
30-1030/1031/1070 C13 C14 A16 
30-1080 C16 C8 C14 
30-1081 C16 B11 C14 
30-1100/1101 B47 B48 B65 
30-1110 1C 9C 13C 
30-1120/1121/1130 B6 B14 B9 
30-1220 30 31 60 
30-1300 4 66 17 
30-1310/1311/1312/1313 76 75 92 
30-1320 71 73 34 
30-1400 29 43 46 
30-1401 44 43 46 
30-1510 C2-31 C2-33 C2-32 
30-1600/1601/1602/1603 19 NA 21...

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Connect the WHITE Analog Output + wire to the Aux Gauge input and the BROWN 
Analog Output – wire to the sensor ground.  Table 4 below lists the Lambda and Sensor 
ground pin locations for the different FIC part numbers. 
 
AEM F/IC P/N Lambda Pin Sensor GND Pin 
30-1910(X) Pin 18 of 22-pin connector Pin 5 of 22-pin connector 
30-1930(X) 
Pin 18 of 22-pin connector 
Pin 20 of 20-pin connector Pin 5 of 22-pin connector 
 
 
 
Thermocouple Mounting...

Page 8 
 
EGT Measurement Mounting Location 
Individual Cylinder EGT 1-2 inches from exhaust port 
Turbine Inlet Temperature 2-3 inches from turbine inlet 
Cylinder Bank EGT Header collector 
 
 
 
  When using both thermocouples for comparison (bank 1 EGT and bank 2 EGT for 
example), make sure to mount both thermocouples in a similar fashion (distance from 
port, tip depth, tube diameter, etc) so the readings are not influenced by installation 
differences.   
 
 
 
 
 
Connecting the Thermocouple...

Page 9 
 
The analog EGT outputs from the AEM X-WIFI are linear dc voltage signals that vary 
from 0.5 Vdc at 0 Degrees Fahrenheit (-18 Degrees Celsius) to 4.5Vdc at 1800 
Degrees Fahrenheit (982 Degrees Celsius) over the operating range of the X-WIFI.  
The signals are used for sending information to a data logger or an engine management 
system like the AEM EMS or F/IC.  The transfer functions for the analog outputs are 
listed below in Degrees Fahrenheit and Degrees Celsius.   
 
Temperature (Degrees...

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WIFI 
 
AEM X-WIFI is preconfigured for adhoc communications with standard WIFI settings 
that are suitable for most applications.  The IP address, subnet mask, and SSID are 
listed below: 
 IP address: 192.168.3.88 
 Subnet Mask: 255.255.0.0 
 SSID: AEM X-WIFI 
The default X-WIFI settings are permanently stored in the module and can be restored 
by the following sequence.  Plug the USB cable into the pc/laptop.  Press and hold 
configuration button...