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. Pionout of the LSU 4.2 connector
Page 45
6
4
2
5
3
1
EMU
B5
G19
B22
B13
LSU 4.2
Bosch LSU 4.2 wiring diagram
1
2
4
5
6
3
3A
+12V
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