VP pumps require sophisticated equipment and software to test and re-calibrate them. As a Bosch Service centre our equipment and engineers enable us to provide our customer with a comprehensive range of units from our service exchange programme. We also provide a test and report service usually providing the report within 24 hours. All of our units carry a full 12 month guarantee backed by Bosch.
*not able to test or repair any twin ECU type no spare parts or test is available.
- Bosch 815 x 2: Fully equipped to re-calibrate all types of Bosch VP pump.*
The Diesel fuel injection system with VP radial piston pump fitted is equipped with two ECU’s for electronic diesel control (EDC): An engine ECU and an injection pump ECU. On one hand, the provision of two ECU’s is necessary in order to prevent overheating of certain electronic components, and on the other to prevent interference signals caused by high currents (up to 20 A) required for controlling the solenoid valve.
The pump ECU collects data from the sensors in the pump. These provide data on angle of rotation and fuel temperature which is then processed to determine injection parameters. At the same time the vehicle ECU processes data from external sensors concerning the engine conditions to calculate the actuator-mechanism adjustments necessary at the engine. This allows the pump to control the injection of fuel at the correct time, in the correct quantity and at as high a pressure possible (up to 1600 bar at the nozzle) ensuring the engine runs as quietly and economically as possible.