AEM 30-2340-N 4-Channel Wideband UEGO AFR Controller - For use with Nascar McLaren ECU - Manual (Page 3)

Page 3
MOUNTING INSTRUCTIONS
UEGO Sensor Mounting
A high flow stainless steel weld-in sensor bung is needed for sensor installation
(additional sensors & bungs are available 30-2063). The bung is specifically designed
so the sensor can provide accurate AFR readings with minimal flow intrusion and
survive extreme exhaust gas temperatures. Pick a mounting location(s) that allows for
easy access to the sensor(s). The sensor tip must be exposed to exhaust gas in order
to give accurate AFR readings. For thin wall tubing, drill a 15/16” hole and weld in the
bung. For thick wall tubing/ castings, drill a 1 1/16” hole and weld in the bung. The
sensor must be mounted at an angle of at least 10 degrees from horizontal in order to
prevent liquids from collecting in the sensor housing. See Figure 2 below. NOTE:
THE OPTIONAL AEM EBP (EXHAUST BACK PRESSURE) KIT (PART # 30-2064)
MUST BE USED IF SENSORS ARE MOUNTED PRE-TURBO.
Controller Mounting
Mount the controller using the supplied 6-32 x 1 ¼ stainless steel screws and nuts. See
Figure 3 and Figure 4 for mounting holes and footprint size.
FIGURE 2. Sensor Bung and Sensor Mounting