Bosch VE pumps, electronically controlled exist in two different versions, depending of the applied positioner type.
The positioner (also known as position sensor, actuator, governor and regulator as well) has been developed in two different technologies:
- the first generation is potentiometric (resistive)
- the second generation is inductive, known as HDK
How to visually identify
externally the two types of positioner are very similar, but it is possible to immediately find which technology they are, focusing on the position of the fuel outlet.
The 1st generation
The first generation applies a resistive type sensor, characterized by contact on different tracks to generate signals
With a multimeter, OTA and the appropriate test lead, electrical measurement of the resistance may confirm the applied technology. Check the following video https://youtu.be/6fXN0PLC-mk
The second generation
The second generation applies an inductive sensor, characterized by absence of contact, therefore the signals generated are a function of the present magnetic field.
With a multimeter, OTA and the appropriate test lead, electrical measurement of the resistance may confirm the applied technology. Check the following video https://youtu.be/6fXN0PLC-mk
The testing equipment
Both technologies can be controlled by the ERT45R simulator, for each technology the correspondent programming kit is required, as follows:
- 81.01.1011 for the 1st technology
- 81.01.1012 for the 2nd technology
- adapter cables are not specific for a particular technology, check the available models
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