AEM 30-4110 Digital Wideband UEGO Gauge - Manual (Page 2)

Page 2
AEM Gauge-Type UEGO Controller Parts
1 x UEGO Gauge Assembly
1 x UEGO Sensor
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)
35-4001 Mild Steel Sensor Bung Plug
30-4008 Stainless Steel Tall Finned Oxygen Sensor Bung (welding required)
Congratulations! The 52mm (2-1/16”) AEM Universal Exhaust Gas Oxygen (UEGO)
Gauge features a digital readout and sweeping 24 color-coded light emitting diode
(LED) display, providing immediate reference to the engine air fuel ratio (or lambda) in
real-time. The AEM gauge is ideal for all vehicles including carbureted applications and
engine dynamometers. A user-selectable 0-5V analog output is included and can be
used with data loggers as well as most Electronic Fuel Injection (EFI) systems including
the AEM Engine Management System (EMS). A serial data stream is also integrated for
air fuel (or lambda) ratio output to a RS-232 com port.
Because the AEM gauge utilizes the internal AEM UEGO controller and Bosch UEGO
Sensor, it is accurate and repeatable to 0.1 of an air/fuel ratio point! With this, there is
no abrupt oscillation as found in many competitor gauges, which utilize a narrow band
oxygen sensor detecting only stoichiometry.