Summary: On an electronically controlled diesel, the high-pressure injection pump does not run itself: an electronic pump control unit, known as the EDC or EDU, drives it. When that unit develops a fault, the engine may refuse to start or cut out, lose power with fuelling faults stored, or report no communication with the pump ECU. Diesel pump ECU repair targets that unit, which is usually what has failed rather than the mechanical pump. Your garage removes it and sends it to our workshop from wherever the car is in the UK; we repair your pump control unit, test it, and post it back with a lifetime warranty and no mileage limit. The repair price is on the Vauxhall Astra listing below.
- Electronic, not mechanical: we do not repair the hydraulic or mechanical side of a diesel pump. The EDC is the part we repair.
- How we test: our diesel pump test rig communicates with the EDC and checks all its functions, and soak testing brings out intermittent faults too. Every repair is carried out in-house, with a final test before dispatch.
- Our one listing: the Vauxhall Astra (1997–2005) diesel pump ECU (EDU).
If your car has a Bosch VP44 pump, our VP44 diesel pump EDC repair page explains how it fails and what our testing shows. Other cars: the repair form asks for the car and what it is doing, and our reply covers what to send and where.
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