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VP Repair



VP Repair and Recalibration

Merlin Diesel have a long standing commitment to our Bosch VP service and repair program. With many years of experience, the knowledge Merlin have acquired ensure our fully qualified staff have the expertise, equipment and systems in place to diagnose and repair any fault encountered. We remain dedicated to provide this service and continually work with Bosch to ensure our prices remain competitive.
Our service exchange program is wide ranging and our test and report service is efficient and professional, offering expert advice within 24 hours of receiving a customer unit.

Technical Data

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.

Enquire about VP Repair and Recalibration

Test Equipment for VP Repair

  • Bosch EPS 815 C/R & VP

    SKU:
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  • 25,000 Sqft Production Centre

    One of the largest and most sophisticated diesel workshops in the world

  • Merlin HQ

    Purpose-built distribution centre in Preston, Lancashire housing over 50.000 parts.

  • Test Equipment Division

    Design and manufacture of an ever evolving range of diesel injector and pump testing service equipment.

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