Kernowsport Diagnostics & Tuning – Viezu-Approved Mobile ECU Remapping Services in Hayle, Cornwall

Stage 1 ECU remap in progress on VW Crafter at Kernowsport workshop.

VW Crafter Camper Van DPF Fix, AdBlue & Stage 1 Remap in Cornwall

Our first customer of the day was Chris, who made the trip all the way from Bude to visit us at Kernowsport with his immaculate 2017 VW Crafter camper conversion. We see a lot of Volkswagens across Cornwall — from Caddys to Transporters — but this Crafter really stood out. With just 30,000 miles on the clock, it was in near-perfect condition. Unfortunately, like many low-mileage vans, it was suffering from some DPF (Diesel Particulate Filter) issues, which are all too common on vehicles that spend more time cruising locally than doing longer regeneration runs. ⚙️ Diagnosing and Fixing the DPF Issue At Kernowsport, we have a comprehensive set of diagnostic tools that allow us to accurately identify and resolve DPF problems.For Chris’s Crafter, the issue was clear — the DPF wasn’t regenerating properly, causing power loss and excessive warning lights. We carried out a DPF clean and software correction to restore full exhaust flow and prevent future blockages. If your Crafter or Transporter is suffering from similar issues, learn more about our: 💪 Extra Power for Cornish Hills – Stage 1 Remap Chris also decided to make the most of his visit by opting for a Stage 1 performance

Read More »
Helicopter delivery of Vauxhall Corsa ECU to Kernowsport in Penzance for DPF delete.

Vauxhall Corsa DPF Delete from the Isles of Scilly – Same Day Service!

It’s not every day we get to work on a vehicle from the Isles of Scilly, but at Kernowsport, we’re always up for a challenge — and this one definitely made our week a little more exciting! Today’s job was a DPF delete on a Vauxhall Corsa, belonging to a customer based on the beautiful island of St Mary’s. While we’d love to say we made the trip ourselves, the job took a slightly more creative route… ✈️ ECU Delivery by Helicopter The customer carefully removed the ECU (Engine Control Unit) from their Corsa and arranged for a friend at St Mary’s Airport to hand it to the helicopter crew heading to Penzance Heliport. When the flight touched down, the crew handed it straight to us — probably one of the most unique ECU handovers we’ve ever had! Back at the Kernowsport workshop, we used our Magic Motorsport Flex equipment to perform a bench-mode DPF delete, safely removing the faulty filter system from the vehicle’s software. Less than two hours later, we had the ECU remapped, cleaned, and back on its way to St Mary’s on the next flight out — completing a full same-day turnaround between Cornwall and the

Read More »
Audi A4 1.4 TFSI remap in Porthleven by Kernowsport achieving 230BHP.

Audi A4 1.4 TFSI Remap in Porthleven – Big Power from a Small Engine

It’s not often we’re left saying “wow” at Kernowsport, but this Audi A4 1.4 TFSI remap in Porthleven was one of those moments. Our customer from The Lizard had literally just picked up his new Audi A4 — and instead of heading home, drove half a mile down the road to meet us at Origin Coffee for a performance remap. That level of enthusiasm isn’t unusual for us — plenty of our customers have “ECU remap” on their to-do list right after buying a car — but what came next really surprised us. 🚗 Incredible Results from Audi’s 1.4 TFSI Engine We already knew that the 1.4 TFSI engine in the Audi A4 is a well-balanced unit. From the factory, it delivers a respectable 147BHP, and given its small capacity, we didn’t expect to see much more. But after applying our custom Stage 1 remap, we were shocked by the results: 💥 230BHP — from a 1.4-litre engine! That’s an incredible increase and well into the territory of Audi’s 2.0-litre models. The customer was blown away by the difference in throttle response, torque delivery, and mid-range acceleration — and we were just as impressed. We put the performance gain down

Read More »
Mercedes Vito at Kernowsport workshop in Pool, Cornwall for DPF delete and performance remap.

Mercedes Vito DPF Delete, EGR Removal & Stage 1 Remap in Falmouth

Today’s job at Kernowsport was a little different — a Mercedes Vito from Falmouth, booked in for a DPF delete, EGR software removal, and a Stage 1 performance remap. That combination is quite common for this model, as the Mercedes Vito is a popular choice among local tradespeople and van enthusiasts across Cornwall who want more performance and fewer reliability issues. But this one had something extra special in mind… ⚙️ The Work: Power, Performance & Reliability The Vito had been suffering from a loss of power and multiple DPF fault codes, which is a familiar story for diesel vans used around town or on shorter trips. After diagnosing the issue, we carried out a DPF delete to permanently remove the root cause, and at the same time performed an EGR delete to prevent future recirculation-related faults. To finish, we applied a Stage 1 remap, optimised specifically for the 2.1L Mercedes engine — safely increasing power to just over 200BHP and improving throttle response and mid-range torque. The result? A smoother, more responsive van that now drives like it should — perfect for the Cornish hills and motorway runs alike. Learn more about our: 🔊 A Unique Twist – Custom

Read More »
2007 Land Rover Defender after performance remap and EGR delete in Nanstallon near Bodmin by Kernowsport.

Land Rover Defender Performance Remap & EGR Delete in Nanstallon, Bodmin

At Kernowsport, we’re always out and about across Cornwall — and this week saw us in Nanstallon, just outside Bodmin, for a job on a true British classic: the 2007 Land Rover Defender. This particular Defender came in for a performance remap and EGR delete, two of our most popular services for these hardworking vehicles. ⚙️ Breathing New Life Into a Cornish Workhorse The Defender is one of those timeless vehicles that never really goes out of style. Loved by tradespeople, farmers, and off-road enthusiasts, they’re built to work hard and last forever — though they can always benefit from a little modern tuning. This one had been remapped before at some point in its life, but our customer wanted to refine the power delivery and improve drivability, especially when towing heavy loads around the Bodmin and Nanstallon area. After applying the Kernowsport performance tune and carrying out a full EGR delete, the difference was immediate. The Defender pulled more smoothly, felt more responsive at lower revs, and delivered better throttle response — ideal for Cornwall’s hilly terrain and tight rural lanes. Learn more about our ECU Remapping Services and how they can transform your vehicle’s performance. 🍂 Preparing for

Read More »
Ford Fiesta 1.6 Zetec showing exhaust upgrades after remap by Kernowsport.

Ford Fiesta 1.6 Zetec Remap with Pops & Bangs in Crowlas

At Kernowsport, we love when customers come back to us for more! This time, Dean from Crowlas returned after we previously worked our magic on his Mini 1.4, which we had remapped for better performance and fuel efficiency. Dean recently upgraded to a Ford Fiesta 1.6 Zetec and wanted the same Stage 1 remap treatment — plus something a little extra… pops and crackles! ⚙️ Returning Customers, Returning Smiles It’s always great to catch up with familiar faces and see how our customers are getting on. Dean’s been busy since we last saw him, and we were delighted to help him upgrade his new daily driver. The Fiesta 1.6 Zetec is already a fun little car, but a performance remap from Kernowsport gives it that extra spark — both literally and figuratively. The added pops and bangs give it a sportier, more aggressive exhaust note without being over the top. Paired with improved throttle response and mid-range torque, this car now feels far more lively and responsive on Cornwall’s winding roads. Want to give your own car the same treatment? Learn more about our Performance Tuning Services. 💥 The Fiesta’s Transformation Our Stage 1 ECU remap tuned the Fiesta’s power

Read More »
Kernowsport technician performing Stage 1 remap on BMW 118D Convertible in Porthleven Cornwall.

BMW 118D Convertible Stage 1 Remap in Porthleven

This week at Kernowsport, we had the pleasure of tuning not one, but two BMW 1 Series Convertibles — both receiving our popular Stage 1 performance remap. The second of the two was this stylish BMW 118D Convertible located in Porthleven, just three doors down from a recent AdBlue delete we carried out for a local tradesman. We seem to be spending quite a bit of time in Porthleven lately — and we’re not complaining! It’s always a good excuse to stop by Origin Coffee, one of our favourite Cornish coffee roasters. ⚙️ Stage 1 Remap Results – More Power, More Driveability The BMW 118D already offers a solid balance of performance and efficiency, but our Stage 1 remap took things to the next level. After calibration, this 2.0-litre diesel was pushing over 180BHP, transforming the driving experience with noticeably improved throttle response, torque delivery, and smoothness. It’s amazing what a well-optimised ECU can do. The owner was thrilled with the extra punch and how much more responsive the car felt, especially on Cornwall’s hilly coastal roads. Learn more about our ECU Remapping Services in Cornwall to discover what’s possible for your own vehicle. ⚠️ DPF Warning Detected – A

Read More »
VW Golf Mk5 Diesel after performance remap by Kernowsport in Porthtowan Cornwall

VW Golf Mk5 Diesel Remap and DPF Work in Porthtowan

VW Golf diesels are almost bread and butter work for us here at Kernowsport, and for good reason — they’re reliable, well-built, and respond beautifully to a professional remap. This particular Volkswagen Golf Mk5 Diesel came to us in Porthtowan as part of a busy day of four jobs. It needed a performance remap as well as some attention to its EGR and DPF systems. Fortunately, VW and Audi models are among the most predictable vehicles to work on — and almost always connect directly via the OBD port, which makes tuning quick and efficient. Improving Performance and Efficiency Once connected, we ran our standard ECU diagnostics to ensure the vehicle was mechanically sound before applying the new map. From there, it was straightforward — our tuning software safely read and modified the vehicle’s ECU data to unlock extra torque and smoother power delivery. The Stage 1 remap we applied is designed to improve not only acceleration and throttle response but also fuel efficiency, especially at motorway speeds. You can read more about this process on our ECU Remapping in Cornwall page. A Noticeable Difference Behind the Wheel Once the remap was complete, the Golf’s owner took it for a

Read More »
Remapped Fiat Abarth 595 performing better on Cornish roads after ECU tune

Fiat Abarth 595 Performance Remap in Porthtowan

The first job of the day in Porthtowan was this brilliant little Fiat Abarth 595 1.4 Turbo, our very first of this specific model — though we’ve tuned dozens of other Fiats over the years. At Kernowsport, we always enjoy working on performance-oriented vehicles, and the Abarth range never disappoints. Small, light, and punchy, this little hot hatch has loads of potential — especially when paired with the right remap. ECU Tuning: When OBD Just Isn’t Enough While the Abarth 595 uses a relatively common Bosch ECU, it turns out it can’t be tuned via the standard OBD port alone. Instead, it requires what’s known as a bench method ECU modification, where the ECU is safely removed and connected directly to our professional tuning equipment. Although this might sound complex, it’s actually one of the safest and most reliable ways to work with an ECU. It allows us to create a complete backup before applying any performance changes — meaning the vehicle can always be restored to factory settings if needed. For this job, we used our Alientech Kess 3 tool, though we also keep our Magic Motorsport Flex available for vehicles that require alternative communication protocols. This flexibility means

Read More »
Mercedes Vito Diesel remapped by Kernowsport in Porthtowan Cornwall

Mercedes Vito Diesel Performance Remap in Porthtowan

It’s always a good day when one job turns into four — and that’s exactly what happened when we visited a local company in Porthtowan to carry out some ECU tuning work. Originally, we were there for a single booking, but once the other staff saw what we were doing, three more decided to get their vehicles remapped on the spot! One of those was this Mercedes Vito Diesel, which was in need of both diagnostics and a Stage 1 performance map. Diagnosing Electrical Faults Before the Tune Before starting the remap, we carried out a full vehicle diagnostic check using our advanced tools. The van had recently had a radio installed, and that installation had unfortunately shorted something out — resulting in a whopping 47 fault codes on the ECU! Using our specialist diagnostic systems, we worked through the issues, reducing those 47 codes down to just six. The likely culprits were a blown fuse or a fault in the body control module, both of which we were able to sort out quickly. Our vehicle diagnostics service is designed to identify and resolve problems like this efficiently, saving customers from costly main dealer visits. Stage 1 Performance Map for

Read More »
Kernowsport technician performing ECU remap on BMW 220D in Cornwall

BMW 220D Convertible Stage 1 Remap in Cornwall

At Kernowsport, we never know quite what a day on the road will bring — and sometimes, one job turns into several! This BMW 220D Convertible was actually the fourth vehicle of the day in the same location, after word quickly spread that we were nearby. It’s not unusual for customers to stop us while we’re out and about in Cornwall to ask if we can help them too, and today was a perfect example of that. Transforming Performance with a Stage 1 Remap This stunning BMW 220D Convertible came to us in excellent condition and ready for a Stage 1 performance map. From the factory, the 2.0 diesel engine produces around 175bhp, but after tuning, we were able to take that up to an impressive 230bhp. That’s a gain of over 50bhp — a transformation that delivers sharper throttle response, smoother acceleration, and noticeably more mid-range torque. 👉 Learn more about how a Stage 1 ECU remap can transform your car’s performance. Checking for Warning Lights While working on the vehicle, we also took a moment to inspect a few dashboard warning lights the owner had noticed. Fortunately, our diagnostic tools quickly identified the cause — simply a couple

Read More »
VW Caddy Mk3 1.6 TDI remap and EGR delete in Camborne by Kernowsport

VW Caddy Mk3 EGR Fix & Remap in Camborne

Our first job on Saturday morning took us back to Camborne, where we worked on a VW Caddy Mk3 1.6 TDI. This van was experiencing the all-too-common EGR issues, and the owner also wanted to take the opportunity to add a performance remap. By applying our EGR delete service and performance tuning, we were able to safely push the little 1.6 TDI engine to its maximum of 150BHP — a huge improvement in both power and drivability. Why We Love VW Caddys At Kernowsport, we’ve worked on plenty of Caddy Mk4s and Caddy 2Ks, but this was the first Mk3 we’ve seen in quite a while. We’ve always had a soft spot for the VW Caddy range – they’re reliable, versatile, and respond really well to ECU remapping. The owner was thrilled with the results, and we had a great chat about his other car — a 1998 Ford Fiesta, which brought back plenty of memories as it was the same year we bought one new ourselves. Proof that time flies! A Strong Result for a Small Engine This job was a perfect example of how even smaller engines can benefit from performance remaps. With the EGR issues resolved and

Read More »