SM3 Onboard Wideband Controller
Onboard Wideband Lambda ControllerA Bosch LSU 4.9 sensor can be connected directly without theneed to buy a further controller.
An additional second lambda controller can be installed to have 2 independant LSU 4.9 sensors measering 2 different banks.
- Bosch LSU 4.9 BLACK
- Bosch LSU 4.9 YELLOW
- Bosch LSU 4.9 RED
- Bosch LSU 4.9 GREY
- Bosch LSU 4.9 WHITE
- Bosch LSU 4.9 GREEN
All cables must be connected to have a working/error free lambda controller.
Never ever leave LSU sensors electrically unconnected in the exhaust, thermoshock and condensation will kill sensors!
Status LED (LD3):
- Blinking Fast: Heating sensor status
- Blinking Slow: Lambda Controller normal operational
Power LED (LD4):
- ON: Lambda Controller is powered and standby
- Flashing: Error detected
Common Tunerstudio Settings:
- Custom linear WB
- Signal 5-0V = AFR 9.5 - AFR 22.35
- Signal 5-0V = AFR 7.35 - AFR 22.35 (pre 2022 versions)
Activating the onboard widebandcontroller is done by activating a "Programmable output - output Ignition G/O2controller” under TunderStudio
Not grounding the output Ignition G/O2controller will result in standbylambda controller(s).
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