AEM Analog E85 Wideband UEGO Gauge E85 AFR 305143 User Manual

							 
 
 
 
AEM Performance Electronics 2205 126th Street Unit A, Hawthorne, CA. 90250 Phone: (310) 484-2322 Fax: (310) 484-0152 http://www.aempower.com Instruction Part Number: 10-5130 Rev 02  2009 AEM Performance Electronics 
 
Part Number 30-5143  
E85 Analog Wideband Air/Fuel Ratio Gauge 
Figure 1.  Wiring Schematic 
AEM Gauge-Type UEGO Controller Parts 
1 x 35-5143(B/W) E85 UEGO Gauge Assembly  
1 x 30-2001 UEGO Sensor 
1 x 35-8535 Install Kit (O2 Bung with 6 Butt Connectors) 
1 x 10-5143 Installation Instructions 
1 x 35-3411 8-Pin Power Harness 
1 x 35-3400 6-Pin Sensor Harness 
1 x 35-8529S Silver Bezel 
  
						

							Page 2 
INSTALLATION 
 
1. Disconnect the negative battery cable. 
2. Secure the gauge in a 2 1/16th” (52MM) mounting hole with the supplied bracket. 
3. Plug the 8-wire power harness into the mating connector on the back of the 
gauge and connect the wires as shown in Figure 1.  Note: the locating tabs on 
the side of the connector should be nearest the center of the gauge. 
4. Mount the sensor as shown in figure 2. 
5.  Connect the sensor to the gauge using the 6-wire sensor cable.  The connector 
with the grey latch connects to the sensor.  The single-row connector connects to 
the back of the gauge.  The locating tables on the single-row connector should 
be farthest from the center of the gauge. 
 
 
RED - Connect BOTH RED wires to a constant 12 volt power source utilizing a 5A fuse. 
 
BLACK – Connect BOTH BLACK wires to a clean power ground. 
 
PINK - Connect to a switched 12 volt power source utilizing a 5A fuse. 
 
GREY - Connect to instrument lighting circuit supply voltage. 
  
*WHITE - Connect to Lambda + Input. 
 
*BROWN - Connect to Lambda – input. (Must be connected if Lambda + is used) 
 
*optional – only needed if using the available differential analog output  
 
Wiring notes: 
 RED - When wired as shown above, the gauge will park the needle upon 
powering down.  Alternatively, both RED wires can be connected to a switched, fused 
12 volt power source.  With both RED wires and the PINK wire connected to switched 
power, the needle will remain at its current position upon powering down.  For both 
power connection methods, the needle will rotate to the parked position before rotating 
to the value of the current operating condition upon powering up. 
 GREY – The GREY wire is used to control the lighting intensity of the gauge.  
Maximum lighting intensity is achieved when the GREY wire is connected to 12 volts.  
Minimum lighting intensity is achieved when the GREY wire is not connected.  The 
instrumentation illumination on many vehicles is controlled by varying the supply voltage 
to the instrument panel lights.  When the GREY wire is connected to the instrument 
panel supply voltage, the intensity of the gauge is controlled by the dimmer switch on 
the dash. 
 WHITE – The WHITE wire should be connected to the Lambda + input on the 
EMS or the analog + input on a similar device. 
 BROWN – The BROWN wire should be connected to the Lambda – input or the 
analog – input.  If the EMS or similar device does not have a – input, the BROWN wire 
should be connected to a sensor ground.  If no sensor ground is available, the BROWN 
wire should be connected to a power ground.  Note: The BROWN wire must be 
connected in order to get correct readings from the analog output. 
 
  
						

							Page 3 
 Sensor Mounting 
 
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 port as all of these can cause the sensor to 
overheat. On turbocharged engines the UEGO sensor must be installed after the 
turbo charger, if not, the pressure differential will greatly affect the accuracy of 
the unit. For accurate readings, the sensor must be mounted before catalytic 
converters and/or auxiliary air pumps. To prevent collection of liquids between the 
sensor housing and sensor element during the cold start phase, the installation angle 
should be inclined at least 10° from horizontal with the electrical connection upwards, 
see below.  (Figure 2) 
 
 
 
Figure 2. Minimum mounting angle for the UEGO Sensor 
  
 
Changing the Bezel 
 
The AEM UEGO Gauge comes with the black bezel installed.  However, a silver bezel 
is also included in the gauge kit.  To change the bezel, orient the gauge so you are 
looking at the faceplate.  Rotate the bezel counter-clockwise to unscrew it from the 
gauge cup.  The bezel, glass lens, and rubber spacer are all removable.  Reassemble 
the gauge as shown below in Figure 3.  Do not over tighten the bezel when 
reassembling the gauge.  
 
 
 
 
 
 
 
 
 
 
 
 
 
 Figure 3.  Changing Bezels 
 
>10°  
						

							Page 4 
Backlighting 
 
The Analog Wideband UEGO Gauge has 7 different backlight colors available to the 
end user, which closely match some of the more common factory dash panels: white, 
blue, green, red, orange, light blue, and aqua.   To change the backlight color, rotate the 
backlighting switch using a small precision style screwdriver.  The backlight switch is 
accessed through the small hole in the back of the gauge. 
 
 
 
 
Status Lights 
 
The AEM UEGO gauge has two status lights, see Figure 4.  The status light on the left 
is on during sensor warm up.  The light will turn off once the sensor reaches its 
operating temperature, usually within 30 seconds.  During sensor warm up, AFR 
readings may not be accurate.  The status light on the right will flash if an error is 
detected.  The status light will flash on and off a number of times, followed by a short 
pause.  The error codes are listed below in Table 1. 
 
 
 
 
 
 
Figure 4.  Backlighting Adjustment 
Figure 4.  Illuminated Status Lights 
 ACCESS  
 PORT 
Warmup 
Status 
Light 
Error 
Status 
Light  
						

							Page 5 
 
 
 
# of Flashes Fault Corrective Action 
1-6 Sensor Wiring and/or sensor Check sensor cable for 
broken wires/shorts 
7 System voltage below 10 volts dc Check electrical system 
for good connections 
and proper function 
 
 
 
Analog Output 
 
The analog output from the AEM E85 Analog Wideband Air/Fuel Ratio gauge is a linear 
dc voltage signal that varies from 0.5 Vdc at 5.6:1 AFR E85 to 4.5Vdc at 11.9:1 AFR 
E85 over the operating range of the gauge.  The signal is used for sending information 
to a data logger or an engine management system like the AEM EMS or F/IC.  The 
transfer function for the output is listed below. 
 
AFR = 1.567(V) + 4.825 
 
For example, if the output is 2.0 Vdc, the AFR is 7.96:1 
1.567 * 2.0 + 4.825 = 7.96:1 
 
Configuring the AEM EMS 
 
With an EMS calibration open, go to Setup>Sensors>Oxygen Sensor #1(2)>O2 Sensor 
#1(2) Cal Table>Table, and enter the values below into the O2 Sensor #1(2) Cal Table. 
 
 
Voltage AFR Voltage AFR Voltage AFR Voltage AFR 
0.00 5.6 1.40 7.0 2.81 9.2 4.21 11.4 
0.16 5.6 1.56 7.3 2.96 9.5 4.37 11.7 
0.31 5.6 1.72 7.5 3.12 9.7 4.52 11.9 
0.47 5.6 1.87 7.8 3.28 10.0 4.68 11.9 
0.62 5.8 2.03 8.0 3.43 10.2 4.84 11.9 
0.78 6.0 2.18 8.2 3.59 10.5 4.99 11.9 
0.94 6.3 2.34 8.5 3.74 10.7 NA NA 
1.09 6.5 2.50 8.7 3.90 10.9 NA NA 
1.25 6.8 2.65 9.0 4.06 11.2 NA NA 
 
 
 
 
 
Connect the WHITE Analog Output + wire to the EMS Lambda input and the BROWN 
Analog Output – wire to the EMS sensor ground.   Table 3 below lists the Lambda and 
Sensor ground pin locations for the different EMS part numbers. 
 
 
  
Table 1.  Error Codes 
Table 2. EMS Software Values  
						

							Page 6 
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 
30-1610/1611/1612 46 52 50 
30-1620/1621/1622/1623 29 55 30 
30-1710 2N 4J 2C 
30-1720 C3 D3 O3 
30-1800 C3 A2 D4 
30-1810 D19 B17 B19 
30-1820/1821 A26 D25 C35 
 
 
 
Configuring the AEM F/IC 
 
With an FIC calibration open, go to Setup>Aux Gauge, and complete the Aux gauge 
setup window as shown below in Figure 5. 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Table 3. EMS Pin Locations  
						

							Page 7 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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 
 
 
 
 
Connector Pinouts 
 
 The pinouts for the 6-pin sensor harness and 8 pin power harness are provided 
below in Figure 6. 
 
 
 
 
 
 
 
 
 
Figure 5.  F/IC Aux Gauge Setup 
Figure 6.  Harness Pinouts 
Table 4.  F/IC Pin Locations  
						

							Page 8 
Specifications 
 
UEGO Controller 
Supply Current (nominal, peak) 1.3A, 2.7A peak  
Differential Analog Outputs 1 
Measuring Range 5.6 AFR E85 to 11.9 AFR E85 
Sensor Accuracy 0.1 AFR 
Operating Voltage (nominal) 8.5-15 volts dc 
Harness & Connector Temp Limit: 105C 
 
Notes 
 
The sensor contains a ceramic module and should not be subject to mechanical or 
thermal shock or it may be damaged. The sensor is not designed for operation on 
leaded fuels, doing so will dramatically shorten sensor life. Long term running in the rich 
region (Lambda < 0.95) will shorten sensor life. High exhaust temperatures (over 850C) 
will shorten sensor life. Engine oil consumption at a rate greater than 1 quart per 1,000 
miles will shorten sensor life. With the UEGO Sensor installed, do not run the engine 
without power applied to the gauge. 
 
Replacement O2 Sensor Components 
 
30-2001 UEGO Sensor 
35-4005 Mild Steel Oxygen Sensor Bung (welding required) 
35-3411 8-Pin Power Harness 
35-3400 6-Pin Sensor Harness 
 
12 MONTH LIMITED WARRANTY  Advanced Engine Management Inc. warrants to the consumer that all AEM High Performance products will  be free from defects in material  and  workmanship  for  a  period  of twelve  (12)  months  from  date  of  the  original  purchase.  Products  that  fail  within  this  12-month warranty period will be repaired or replaced at AEM’s option, when determined by AEM that the product failed due to defects in  material  or  workmanship.  This  warranty  is  limited  to  the  repair  or  replacement  of  the  AEM  part.  In  no  event  shall  this  warranty exceed  the  original  purchase  price  of the AEM  part  nor shall AEM be  responsible  for  special,  incidental  or consequential  damages or  cost  incurred  due  to  the  failure  of  this  product. The  Bosch  LSU  4.2  UEGO  sensor  has  a  limited  life  and  is  not warranted.   Warranty claims to AEM must be transportation prepaid and accompanied with dated proof of purchase. This warranty applies only to  the  original  purchaser  of  product and  is  non-transferable. All implied  warranties  shall  be  limited  in duration  to  the said  12 month warranty period. Improper use or installation, accident, abuse, unauthorized repairs or alterations voids this warranty. AEM disclaims any  liability  for  consequential  damages  due  to  breach  of  any  written  or  implied  warranty  on  all  products  manufactured  by  AEM. Warranty returns will only be accepted by AEM when accompanied by a valid Return Goods Authorization (RGA) number.  Product must be received by AEM within 30 days of the date the RGA is issued.  Please note that before AEM can issue an RGA for any product, it is first necessary for the installer or end user to contact the AEM Performance Electronics tech line at 1-800-423-0046 to discuss the problem.  Most issues can be resolved over the phone.  Under no circumstances should a system be returned or a RGA requested before the above process transpires.  
Need additional help?  Contact the AEM Performance Electronics tech department at  
1-800-423-0046 or [email protected], or visit the AEM Performance Electronics 
forum at http://forum.aempower.com/forum/