Car Cranks But Won’t Start? ECU Failure, Water Damage & Immobiliser Fault Guide
Engine cranks but won’t start? This guide explains immobiliser faults, P1570 and U0100 communication errors, water-damaged ECUs and interna...
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Diagnostics First Vehicle condition and fault data checked where required
IMI Authorised Professional automotive technical standards
ECU / Bench Capability OBD, Bench and Boot programming where required
Nationwide Support Mobile, workshop, trade and postal options
Use the tuning database to identify your vehicle and estimated calibration options, then send us your registration for confirmation. Precision Remaps UK provides mobile tuning and diagnostics, workshop ECU services, trade support and postal Bench / Boot programming depending on the vehicle and control-unit requirements.
Office 41, Curzon House
Curzon Street
Burton upon Trent
DE14 2DH
United Kingdom
Precision Remaps UK combines diagnostics, professional ECU/TCU programming and vehicle-specific calibration from our Burton upon Trent workshop, with mobile and nationwide support available where suitable.
Precision Remaps UK supports modern Bosch, Continental, Delphi, Marelli and related ECU / TCU families using professional OBD, Bench, Boot and advanced MCU-access workflows through the Magicmotorsport Flex ecosystem.
For supported next-generation controllers, Korhex extends Flex with direct MCU access for advanced unlocking and Boot Glitch procedures. The correct route is confirmed from the exact controller, hardware, software version and required work before programming begins.
Diagnostics First Controller state and vehicle faults reviewed before software work
Magicmotorsport Flex Current OBD, Bench and Boot protocol coverage
Korhex Unlock Capability Advanced MCU access and supported Boot Glitch workflows
Recovery & Cloning Original software, failed-map recovery and supported cloning routes
Recent Flex and Korhex releases have expanded in-workshop access across modern passenger, commercial and specialist controllers. We use current supported protocols rather than assuming an older unlock or ECU-opening process is still required.
Recent Flex coverage adds direct OBD programming support for supported Stellantis EVPT VCU3000 applications, extending current-generation electronic control access.
CURRENT FLEX UPDATESupported post-2020 Mercedes Truck CPC5 controllers with SPC58 processors can be accessed using the Flex + Korhex Boot Glitch workflow.
HEAVY-DUTY ACCESSKorhex extends supported Boot Glitch access to selected Mercedes Bosch MDG1 controllers, bringing advanced MCU access into the Flex-guided workflow.
MDG1 SUPPORTNew-generation SPC58N support expands Korhex unlocking capability using direct MCU access and the guided Flex procedure on supported controllers.
SPC58N ACCESSFlex + Korhex support allows selected DAF Delphi ETC3 UDS controllers to be unlocked in-workshop through the supported Boot Glitch procedure.
COMMERCIAL ECUSelected BMW and MINI Bosch MD1 / MG1 controllers can be handled through direct Bench pinout access without opening the ECU where the supported protocol applies.
BENCH ACCESSKorhex is a dedicated hardware extension used with Flex for supported advanced ECU-access, unlocking and Boot Glitch procedures. Flex manages the guided workflow while Korhex provides the direct MCU interaction required by compatible controllers.
Korhex interacts with supported microcontrollers as part of the Flex-guided unlocking process.
Used on supported protected controllers where a conventional OBD or Bench route is not sufficient.
Supported unlock procedures can be completed in-house without sending the ECU away for a remote service.
Korhex is not a standalone programmer; the procedure is managed through the Flex ecosystem.
Recent Flex coverage allows selected BMW and MINI Bosch MD1 / MG1 controllers to be accessed directly through Bench pinout connections while keeping the ECU physically closed. Exact support still depends on ECU type, processor, hardware and software.
Ford coverage spans modern diesel and petrol controllers across passenger and commercial vehicles. Normal calibration, cloning and recovery can require different programming methods, so the required job is confirmed alongside the ECU family.
Access capability is useful far beyond performance tuning. We support fault-led programming and controller work across private, trade and postal ECU jobs.
Stage 1, Stage 2, ECO and towing calibration matched to the exact vehicle and intended use.
Protected-controller access using supported Flex, Bench, Boot or Korhex workflows.
Supported controller cloning and adaptation routes based on the exact ECU or TCU family.
Failed programming, corrupted software and previous-map recovery where the controller remains accessible.
Restoration of supported original software where a previous calibration needs correcting or reversing.
Fault-led assessment before software is blamed for a mechanical, sensor, wiring or aftertreatment issue.
We identify the vehicle, engine, ECU / TCU family and likely programming route.
Calibration, unlocking, cloning and recovery can require different access methods.
Hardware, software and current protocol coverage are checked before a route is promised.
The supported route and price are confirmed before programming begins.
We can identify the likely controller, check the latest Flex / Korhex support and confirm whether the job uses OBD, Bench, Boot or specialist MCU access.