Bosch IMSA Prototype Classes Scrutineering System - LSU 4.9 Lambda Sensor; Engine Speed Sensor

3 | Components
Bosch Motorsport IMSA Prototype Class Scrutineering Logger 13 / 47
3.3.6 LSU 4.9 Lambda Sensor
Functional Description: Exhaust gas lambda sensor
Use Case:
 See Appendix for required sensor mounting information.
 One sensor per cylinder bank is required.
Callout: Driver’s left bank will be Sensor #1
Part Number: 0258.988.001
Thread: M18 x 1.5
Installation Torque: 40 to 60 Nm
3.3.7 Engine Speed Sensor
Functional Description: Hall effect speed sensor
Use Case:
 Each manufacturer may select a sensor to be approved by IMSA.
 This sensor must be fitted in an IMSA approved location.
 Missing/extra tooth configurations are NOT supported
Recommendation:
 Bosch P/N: HA-N F.02U.V0U.714-01
 20 tooth symmetrical wheel, no missing teeth
Trigger Wheel Requirements (for HA-N above):
 Diameter > 80mm
 Slot Width > 10mm
 Tooth Width > 5mm
 Height of tooth >5mm
 Thickness > 8mm
Harness Pinout:
Connector
ASL106-05SA-HE
Pin
Description
1
12V+ KL.30
2
GND
3
Signal
4
5