AEM 30-2340 4-Channel Wideband UEGO AFR Controller - Manual (Page 18)

Page 18 10-2340 Rev 05 121012
SPECIFICATIONS
4 CH UEGO Controller
Supply Current (nominal, peak)
3.2A, 10.5A peak
Differential Analog Outputs 4
Measuring Range: UEGO 8.5:1 to 18:1 AFR Gasoline, 0.58-1.22 Lambda
UEGO Sensor Accuracy 0.1 AFR
Operating Voltage (nominal) 8.5-15 volts dc
Harness & Connector Temp Limit: 105C
NOTES
If further tuning help is needed be sure to visit the video gallery or performance
electronics forum at www.aemelectronics.com for comprehensive instructional videos
and information.
The UEGO 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 4 CH UEGO controller.
REPLACEMENT/OPTIONAL UEGO CONTROLLER
COMPONENTS
30-2001 UEGO Sensor
35-4008 Stainless Steel UEGO Sensor Bung
30-2063 Sensor Kit with Stainless Bung
30-2064 Exhaust Back Pressure (EBP) Kit
30-343X AEMnet Adapter
AEMnet MESSAGE STRUCTURE
The 4 CH UEGO controller transmits two messages through the CAN network. The first
message contains Lambda values of all four channels and is transmitted every 10 ms.
The second message, transmitted every 40 ms, includes error flags, cylinder
configuration mode, EBP sensor readings and status. Messages are transmitted in 500
Kbps and use extended format message ID (29 bits). Appendix A shows entire
message protocols, including message IDs, number of bytes, data field, etc.