Sensores

PRODUCT
DATASHEET
#57005 rev 2.0

Bosch LSU 4.2 Sensor
Part Number #57005

Basic Specifications
 Maximum continuous operating
temperature is 930 °C
 Maximum temperature for short period is
1030 °C (maximum 10 minutes)
 Mounting torque 60 Nm max
 Required spanner 22 A/F
 Lifetime estimates:
Sensor lifetimes are highly dependent on
application. Typically sensor lifetime forhigh performance engines is 500 hours in
unleaded fuel and 50 hours in leaded fuel.
See also Sensor lifetime page 4

 Fuel: Unleaded gasoline, ethanol gasoline
blends, methanol, diesel, LNG, CNG, LPG

Other Information
Compatibility
 ‘hundred series’ ECUs: M400, M600, M800,
M880

The Bosch LSU 4.2 sensor is a 5 wire
wideband Lambda sensor. It is used to
control fuel and ignitionsystems to optimize
a car's performance in the areas of emissions
and fuel economy.
The Lambda sensor can be connected directly
to any MoTeC ‘hundred series’ ECU with a
Lambda upgrade enabled. It can also be
connected via the PLM to any ECU or Dash
Logger.
Lambda gives a measure of the Air to Fuel
Ratio (AFR) that is independent of the type of
fuel being used.
Lambda 1.00

Stoichiometricratio:
no excess fuel and no
excess air

 #59001 Mild steel weld-in bung M18x1.5

Lambda > 1.00

Lean: excess air

 #59002 Stainless steel weld-in bung
M18x1.5

Lambda < 1.00

Rich: excess fuel

 PLM - Professional Lambda meter

Accessories

 #64009 Mating connector
 #61104 Adapter loom (sensor connector to
DTM connector)

Complete kit
The complete Lambda kitcontains a PLM,
Bosch LSU 4.2 Lambda sensor, and all
required looms and accessories:
 #15006 kit with short loom - length 2.6 m
 #15006LL kit with long loom - length 6.0 m

For a quick reference table to convert Lambda
to AFR for various fuels see page 3.
MoTeC ECUs allow for a Lambda aim table
based on load and RPM. Referencing the
measured Lambda, the Quick Lambda
function in the softwareadjusts the values in
the fuel control table at the specified load and
RPM site to achieve the aim Lambda.
Similarly, the Lambda Was function adjusts
the values in the fuel control table using
recorded Lambda measurements from a data
log.

MoTeC Pty. Ltd, 121 Merrindale Drive, Croydon South, Victoria 3136, Australia
www.motec.com, Ph 61 3 9761 5050, Fax 61 3 9761 5051,support@motec.com.au
Product specifications are subject to change

PRODUCT
DATASHEET
#57005 rev 2.0

Connector and Pinout
6 pin connector
Mating connector #64009
Pin no

Name

Colour

1

Vs

Black

2

Ipr

3

Heater +

Grey

4

Heater –

White

5

Sensor 0 V

Yellow

6

Ip

Red

Note:
Pin numbers relate to Bosch
part no 0 258 007 206

Connecting to a ‘hundredseries’ ECU

Connecting to a PLM

Lambda sensor

Lambda sensor

Pin

Name

‘Hundred series’ ECU
M400/M600/
M800 Pin

M880
Pin

Name

Pin

Name

PLM
Pin

Name

1

Vs

B_25

54

LA1–S

1

Vs

M_8 Vs

2

Ipr

NC

NC

NC

2

Ipr

M_4 Ip

3

Heater +

A_26

23, 32, 41 VBAT

3

Heater +

M_2 Heater +

8, 9, 43,
51, 58, 59, AnyAux
65, 64

4

Heater –

M_7 Heater –

Heater –

A_1, A_18,
A_23, A_24,
A_31, A_32,
A_33, A_34

5

Sensor 0 V M_5 Common

6

Ip

4

5

Sensor 0 V B_16

27

0V–ENG

6

Ip

60

M_9 Ipr

LA1–P

B_26

When connecting a second Lambda sensor
(not available on M400)
1

Vs

B_12

55

LA2–S

6

Ip

B_13

61

LA2–P

MoTeC Pty. Ltd, 121Merrindale Drive, Croydon South, Victoria 3136, Australia
www.motec.com, Ph 61 3 9761 5050, Fax 61 3 9761 5051, support@motec.com.au

PRODUCT
DATASHEET
#57005 rev 2.0

Lambda versus Air Fuel Ratio
Examples of typical values.

Procedure described for Version 3 software.
Configuration in Version 2 software is similar.

d
Di
es
el

5b
len

4.5

6.8

10.2

10.9

0.75

11.0...