ECU Repair, Cloning & Diagnostics for Newport
If a vehicle has a non-start, communication fault, replacement ECU problem or persistent warning light, the correct diagnosis matters more than replacing parts at random.

Cloning, programming, coding and recovery.
Fault codes, live data, wiring and module communication.
Mobile South Wales and UK postal ECU service.
ECU and diagnostic support in Newport
ECU and module support
We work with many Bosch, Continental, Delphi, Denso, Siemens/VDO and Marelli systems, depending on vehicle and ECU family.
Diagnostics before replacement
Fault codes alone do not prove an ECU is defective. Power supplies, CAN communication, sensors, wiring and immobiliser status may need checking before condemning a module.
Mobile and postal options
Newport customers can contact us for mobile diagnostics subject to availability, or use the UK postal ECU service for removed modules.
Professional tools for modern control units
Depending on the vehicle, we work with systems from Bosch, Continental, Delphi, Denso, Siemens/VDO and Marelli. The exact ECU number and software version are checked before programming.
Have a fault code?
Send the registration, DTC and location. A photo of the ECU label or diagnostic scan can save time.
Check My VehicleBefore booking ECU work
Do I need to remove the ECU?
No. For mobile diagnostics the vehicle normally stays complete. Removal is useful for some cloning, bench programming and postal jobs.
Can a replacement ECU be made plug and play?
On many systems, yes, but the method depends on ECU family, immobiliser architecture and the condition of the original unit. We confirm compatibility first.
Can you diagnose a vehicle that already had parts replaced?
Yes. In fact, these jobs often benefit from checking live data, wiring, module communication and coding rather than replacing more parts.
Send Your Vehicle Details
Registration, fault codes and a short description help us recommend the right next step.