AEM Digital Wideband UEGO Gauge without Sensor 304110NS User Manual

ADVANCED ENGINE MANAGEMENT INC. 2205 126th Street Unit A, Hawthorne, CA. 90250 Phone: (310) 484-2322 Fax: (310) 484-0152 http://www.aemelectronics.com  Instruction Part Number: 10-4110NS Rev 151130  2015 Advanced Engine Management, Inc.   Page 1 
 
 
 
Installation Instructions for 
30-4110NS “No Sensor” 
Gauge-Type UEGO Controller 
 
 
 
 
WARNING: 
! 
This installation is not for the electrically or mechanically 
challenged! Use this sensor with EXTREME caution! If you are 
uncomfortable with...

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AEM Gauge-Type UEGO Controller Parts 
1 x UEGO Gauge Assembly 
1 x O2 Sensor Bung 
4 x Butt Connectors 
1 x Installation Instruction 
1 x 4 Lead Harness 
1 x UEGO Sensor Harness 
1 x Silver Bezel 
1 x Black Lambda Faceplate 
1 x White AFR Faceplate 
 
Replacement Wideband Controller Components 
30-2004 Replacement Bosch LSU49 Sensor 
35-3441 96” Wideband LSU49 UEGO Sensor Replacement Cable 
35-3401 36” Wideband UEGO Power Replacement Cable 
35-4005 Mild Steel Oxygen Sensor Bung (welding required)...

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Typical  production  vehicle  oxygen  sensors  rely  on  “Nernst  Cell”  technology,  commonly 
called  “Narrow  Band”  and  sometimes  erroneously  described  as  “Wide  Band”.  This  is  a 
very  cost  effective  method  that  outputs  a  voltage  based  on  the  oxygen  content  of  the 
gas being sampled. It is accurate in the region surrounding stoichiometric operation and 
leaner.  Unfortunately,  in  the  rich  region  where  high  performance  engines  usually 
operate, their accuracy...

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Each  AEM  UEGO  sensor  is  individually  calibrated  and  a  resistor  integral  at  the 
connector  body  is  laser  trimmed  with  this  value.  This  process  replaces  the “free  air” 
calibration  procedure required  by  some  manufacturers when  changing  sensors  and 
implements a sensor specific calibration for unparalleled accuracy. (Figure 2) 
 
Figure 2. The connector module contains a laser trimmed calibration resistor, 
which defines the characteristic of the sensor....

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Figure 4. Gauge Side Harness Connections 
 
 
 
 
RED   
Connect to a switched 10-18 volt power source utilizing a 10A fuse. 
 
BLACK   
Connect to a clean power ground. 
 
*WHITE  
Connects to any auxiliary unit that accepts a 0-5 volt input. 
 
*BLUE  
Connects to a RS-232 com port for hyper-terminal data logging. 
 
*optional  
 
    

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Analog Output  
 
(Skip this section if you are not connecting the product to an AEM EMS.) 
If  the AEM  UEGO  gauge  is  to  be  connected  to  an  AEM  EMS,  the  UEGO  gauge’s 
WHITE  Analog  Output  wire  shall  be  connected  to  an  EMS  Lambda  input.  Locating  a 
suitable  Lambda  input  channel  can  be  done  using  the  Application  Notes  provided  with 
the  EMS.  If  the  Application Notes  are  not  readily  accessible,  a  current  list  of  AEM 
Engine Management Systems is...

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Below (Table 2) is a list of AFR values that should be entered into the 02 Sensor #1(#2) 
Cal  Table  if  inputting  the  analog  signal  to  an  AEM  EMS.  These calibration  table(s)  are 
found  in  the  AEMPro  software:  Setup  |  Sensors  |  Oxygen  Sensor  |  Oxygen  Sensor 
#1(#2) 
 
02 Volts Lambda Gasoline AFR Methanol AFR Propane AFR Ethanol AFR CNG AFR 
0.00 0.683 10.00 4.42 10.72 6.15 9.90 
0.16 0.705 10.32 4.56 11.07 6.34 10.22 
0.31 0.725 10.62 4.69 11.39 6.53 10.52 
0.47 0.747...

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1.       Unplug the O2 Sensor from the 30-4110 Gauge. 
2.       Open up the O2 Calibration Setup Wizard by navigating to Wizards -> Setup Wizard 
-> Sensor: O2 #1 (AFR) 
3.       Double click the AEM Digital Gauge (PN 30-4100) it will highlight and display 
matched. 
4.       Click Apply and close screen. 
5.       Note: The O2 Gain options have been removed from Series2 EMS firmware.  
6.       Next navigate to the O2 Sensor #1 Cal Table. This can be done by clicking on the 
Sensors Tab at the...

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Verify the settings above and click OK. When power is supplied to the AEM UEGO Gauge, AFR 
(or Lambda) data will be displayed, as shown below. (Figure 6) 
 
 
Figure 6. Data logging with HyperTerminal 
 
 
 
UEGO Sensor 
The  30-4110  is  compatible  with  Bosch  LSU4.9  sensors  *only*.    This  sensor  can  be 
identified by the connector as shown in Figure 7. 
 
 
Figure 7. Use only Bosch LSU4.9 Sensors! 
 
 
 
 
 
If attempting to route the UEGO Sensor through a tight space, AEM recommends...

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IMPORTANT INSTALLATION NOTE - UEGO Sensor Mounting Orientation  
 
 
A weld-in M18 X 1.5 boss is supplied for sensor installation. Mount the O2 sensor in the 
exhaust  system  at  least  18  inches  downstream  from  the  exhaust  port. If  you  anticipate 
high  EGTs  (over 800C),  run  a  turbocharger,  run  at  high  RPM  for  extended  periods  of 
time  or  plan  on  running  leaded  race  fuel  then  you  must  mount  the  sensor  at  least  36 
inches or  more downstream of the exhaust...