Vehicle diagnostics before remapping – at Wrekin Remaps, we take vehicle performance seriously. Whether you’re based in Shrewsbury, Telford, Hereford, Stafford, or anywhere across Shropshire, Herefordshire, Staffordshire, and North Wales, our comprehensive approach to remapping starts with one crucial step: a full diagnostic health check.
Before we make any alterations to your vehicle’s ECU software, we connect our advanced diagnostic equipment to your car’s OBD2 port. This connection allows us to communicate directly with the engine control unit and all related sensors, checking hundreds of parameters in real time.
Why is this so important?
Your vehicle is a complex network of modules, sensors, and control units, all working together to deliver performance, fuel economy, and reliability. If there are any underlying faults or issues, attempting to remap the vehicle without first identifying them could lead to poor results or even cause damage.
Our team uses the latest tools to perform a thorough scan that highlights any trouble codes, sensor faults, or inconsistencies. From EGR valve performance and turbo boost pressure to fuel delivery and injector balance, we leave nothing to chance.
For example, you might be booking a Stage 1 remap for your VW, Audi, BMW, Ford, or Range Rover to unlock extra power and torque across Staffordshire and Shropshire. But if your vehicle has a hidden issue—like a faulty MAF sensor or DPF restriction—it won’t achieve the gains you expect. Worse, it could cause costly repairs down the line.
That’s why we’re committed to transparent, professional diagnostics as the first stage of every ECU remap. We believe in delivering results safely and reliably, without guesswork.
What happens during your diagnostic appointment?
✅ We connect our diagnostics tool via the OBD2 port.
✅ We run a full scan across all control modules and components.
✅ Our system generates a detailed report highlighting any stored or pending fault codes.
✅ We discuss any findings with you before any remapping begins.
✅ If everything is clear, we proceed to tailor your ECU software upgrade.
We know that our customers across Telford, Shrewsbury, Herefordshire, and North Wales rely on their vehicles daily. That’s why our diagnostic process is designed to give you confidence that your engine is healthy and ready to make the most of its new performance map.
This approach has earned us a reputation across the Midlands and North Wales for dependable, customer-focused remapping services. From improved throttle response and smoother delivery to increased power and torque, you’ll feel the benefits straight away—without compromising your vehicle’s reliability.
Why trust Wrekin Remaps for diagnostics and ECU remapping?
✅ We use only up-to-date diagnostic tools and remapping software.
✅ Our technicians are fully trained and experienced in modern engine management systems.
✅ We operate a transparent service, explaining everything clearly so you know exactly what’s happening to your vehicle.
✅ We cover Shropshire, Staffordshire, Herefordshire, Worcestershire, and North Wales.
If you’re thinking about remapping your car, van, 4×4, or agricultural vehicle, let’s start with a thorough diagnostics check. It’s the best way to protect your investment, avoid hidden issues, and get the performance gains you’re paying for.
Book your vehicle diagnostics and remapping consultation today. Experience the Wrekin Remaps difference across Shropshire and beyond.