ECU Master EMU User Manual page 45

In the case of LSU 4.2 probe, you should apply the following guidelines:
- the probe must be installed in a place, where exhaust gas temperature (EGT) does not exceed
750 degrees Celsius.
- in turbo cars we install oxygen sensor in down-pipe,
- the sensor should be installed in a position close to vertical,
- you should always use original connectors,
- the connectors must be clean and dry. You must not use means like contact spray or other anti-
corrosion means,
- you must not drive without a connected sensor into the EMU device, as it will cause a significant
shortening of probe's life,
- EMU requires calibration (Rcal parameter) when being connected to the new probe.
Installation of the lambda probe in the exhaust system.
EMU
B5
G19
B22
B13
Bosch LSU 4.2 wiring diagram
Pionout of the LSU 4.2 connector
1
2
4
5
6
3
3A
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4
6
3 1
5
LSU 4.2
+12V