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

Kernowsport carrying out AdBlue delete on Range Rover Evoque.

Range Rover Evoque 2.0d AdBlue Delete – Penzance, Cornwall

Our first job of the day took us down to Alverton, Penzance, to carry out an AdBlue delete on this 2017 Range Rover Evoque 2.0 diesel—a vehicle we’re becoming increasingly familiar with at Kernowsport. We’ve now completed numerous Evoque AdBlue solutions, and an interesting pattern has emerged. Most of the vehicles we see fall into the 2016–2017 model years, suggesting either early teething issues with emissions technology or simply that these systems are now reaching the age where failures become common. A Common AdBlue Problem on Evoques AdBlue faults on these vehicles typically result in: Rather than replacing expensive AdBlue components, many owners choose a software-based solution, allowing them to keep their vehicle on the road without ongoing issues. You can read more about our approach on the AdBlue Solutions page. OBD Programming with Voltage Support From a technical standpoint, these Evoques are a straightforward OBD programming job, with relatively quick read and write times. However, one consistent issue we see is a weak factory battery, which can cause voltage drop during ECU programming. To ensure a safe and reliable write, we always connect a battery conditioner, maintaining stable voltage throughout the process—something that’s essential when working on modern Land

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2019 Peugeot Partner 2.0D showing AdBlue countdown warning.

Peugeot Partner 2.0D AdBlue Delete – Illogan, Redruth

This 2019 Peugeot Partner 2.0D, worked on in Illogan near Redruth, is a textbook example of the AdBlue issues we see week in, week out at Kernowsport. The van arrived with the familiar AdBlue countdown warning and the looming threat of a no-start condition—a situation that quickly turns from an inconvenience into a serious problem when the vehicle is needed for work. Why Peugeot Partner AdBlue Systems Fail Unfortunately, local main dealers are often reluctant to help with these faults and will usually recommend replacing major components such as: It’s not uncommon for quotes to land in the £2,000–£3,000 range, with no real guarantee the issue won’t return. The reality is that AdBlue is an unpleasant, corrosive substance that crystallises easily. Once it starts to build up around sensors and injectors, repeated failures are almost inevitable. The Stellantis platform (Peugeot, Citroën, Vauxhall) is particularly prone to this, and most will suffer problems at some point in their life. A Proven AdBlue Solution from Kernowsport The good news is that Kernowsport has the experience, specialist tools, and software knowledge to resolve these issues quickly and reliably. In this case, we were able to: Most of the vehicles we see like this

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Isuzu Grafter N35 engine ECU removal under cab.

Isuzu Grafter N35 AdBlue Delete – A Kernowsport First

At Kernowsport, we’re often asked to work on vehicles that other tuners simply won’t touch—and the Isuzu Grafter N35 is a perfect example. We were proud to be one of the first specialists in the UK to successfully carry out an AdBlue delete on the Grafter N35 LCV, and it’s fair to say this platform did not give up its secrets easily. Why the Isuzu Grafter N35 Is So Challenging Unlike most light commercial vehicles, the Grafter N35 runs two separate ECUs: Both units must be modified for a successful AdBlue solution—and crucially, both ECUs must be physically removed from the vehicle. The engine ECU is particularly awkward, buried deep beneath the cab and secured with security bolts, making access time-consuming.The AdBlue ECU isn’t quite as bad, but Isuzu didn’t make life easy there either, protecting it with a steel anti-tamper plate. The very first Grafter we completed took nearly two full days, as we had to reverse-engineer the system and develop a reliable solution from scratch. Vehicle Off the Road for a Month This particular Grafter had been off the road for over a month, completely unable to start due to AdBlue system faults. For a working vehicle, especially

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Citroën Berlingo 1.6 diesel with AdBlue countdown in Perranwell Station.

Citroën Berlingo AdBlue Delete – Perranwell Station, Cornwall

The first job this Saturday morning took us to Perranwell Station near Penryn, working on a 2019 Citroën Berlingo 1.6 diesel that had developed the all-too-familiar AdBlue countdown. Jobs like this are very much bread and butter for Kernowsport. We typically carry out several AdBlue solutions each week on Berlingos, Vivaros, Experts, and related Stellantis models—most commonly with the 1.5 diesel, although this example was the earlier 1.6 variant. Specialist Tools for Faster AdBlue Repairs Because these vehicles are so common, we’ve invested in specialist ECU leads that allow us to connect directly to the ECU under the bonnet, without removing it from the vehicle. This significantly reduces labour time and means we can complete the job cleanly, safely, and efficiently on site, whether that’s at home, work, or roadside. It’s one of the many reasons customers across Cornwall choose Kernowsport for mobile ECU and AdBlue solutions. Why the Berlingo Takes a Little Patience The Citroën Berlingo has one small quirk that makes it slightly more frustrating than some other models:it’s fitted with an immobiliser delay. After writing the ECU, we must wait a full 20 minutes before the AdBlue system can be reset and the vehicle restarted. If the

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Peugeot Boxer L1 H1 van in Camborne with AdBlue countdown warning.

Peugeot Boxer AdBlue Solution in Camborne

This job took place on a blustery Thursday in Camborne, just ahead of an incoming storm—making for a wet and windy working environment, but nothing out of the ordinary for mobile tuning in Cornwall. The vehicle in question was an unusual L1 H1 Peugeot Boxer, fitted with the 2.0D EcoBlue engine and, unsurprisingly, suffering from an AdBlue countdown warning. With work to do and downtime not an option, the owner needed the issue resolved quickly and reliably. Fast, On-Site AdBlue Resolution We were able to drop in on the way back to Hayle, fitting the job in without disruption to the customer’s schedule. Thanks to our professional tooling, this was a straightforward OBD programming job, completed in around one hour. The work carried out included:✔ AdBlue system reset and software correction✔ Removal of countdown and no-start risk✔ Stage 1 performance remap for improved drivability The additional performance upgrade gives these vans better low-end torque, making daily work and motorway driving far more comfortable. Keeping Working Vans Working At Kernowsport, we understand that a van off the road means lost income. That’s why we prioritise fast response times, mobile service, and reliable results, especially for trades and commercial customers. This Peugeot

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Citroën C4 parked in Launceston for AdBlue delete by Kernowsport.

Last-Minute Citroën C4 AdBlue Delete – Launceston

Another last-minute AdBlue problem just before Christmas had us heading east to Launceston, this time to work on a late-model Citroën C4 fitted with the notoriously troublesome 1.5D engine. These engines are well known for AdBlue system faults and no-start countdowns, and this vehicle was no exception. With the festive period fast approaching, the owner needed the issue resolved quickly—and reliably. Specialist Tools for Common AdBlue Problems At Kernowsport, we work on so many Stellantis-group vehicles (Citroën, Peugeot, Vauxhall, Fiat) that we’ve invested in specialist ECU leads specifically for the 1.5D platform. Without this lead, the ECU normally has to be removed from the vehicle and bench-programmed. With our setup, we can simply connect directly to the ECU under the bonnet, dramatically reducing labour time and disruption. The result?✔ No ECU removal✔ No unnecessary dismantling✔ Around one hour saved on the job What used to be one of our least-favourite vehicles to work on has now become one of the quickest and most efficient. Back on the Road in Under an Hour With a total turnaround time of less than an hour, the AdBlue countdown was permanently resolved and the Citroën C4 was back to full usability. Most importantly, the

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Peugeot 308 parked in St Austell for AdBlue delete and remap by Kernowsport.

Peugeot 308 AdBlue Delete & Blend Remap – St Austell

One of our final jobs before Christmas took us over to St Austell to work on this Peugeot 308, carrying out an AdBlue delete alongside a blend performance remap. It was a slightly last-minute booking, but we were keen to fit it in so the owner could enjoy worry-free motoring over the holiday period—without the stress of an AdBlue countdown or no-start scenario. Helping Cornwall Keep Moving Living in Cornwall without a car is challenging at the best of times, especially around Christmas. That’s why we were more than happy to head up to St Austell and get this Peugeot back on the road quickly and reliably. AdBlue faults are becoming increasingly common on modern Peugeot diesel models, and the 308 is no exception. Once the warning countdown begins, the vehicle can become unusable—something no one wants just before the holidays. AdBlue Delete with a Sensible Performance Upgrade While resolving the AdBlue issue, we also installed one of our popular blend remaps. This type of tune is ideal for daily drivers, offering: It’s a perfect setup for Cornish roads and hills, especially around the St Austell area, where a little extra pulling power makes everyday driving far more relaxed. Quick

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Range Rover Evoque 2.0D parked in Camborne for AdBlue and DPF delete by Kernowsport.

Range Rover Evoque AdBlue & DPF Delete in Camborne, Cornwall

Here at Kernowsport, we see a steady stream of Land Rover and Range Rover vehicles, most commonly for AdBlue-related problems. The majority of these fall within the 2016–2019 model years, and the Range Rover Evoque 2.0D is one of the most frequent visitors. This particular job took us to Camborne, where we met a customer of Smiley Pistons in Troon. We’ve worked on a number of vehicles for them over the years, and this Evoque was another great example of how workshops and specialists can work together to get the best result for the customer. DPF Hardware Done – Software Sorted by Kernowsport Smiley Pistons had already carried out the DPF hardware delete, and our role was to complete the software side, including: This kind of collaboration works perfectly—hardware handled by a trusted local garage, and ECU software completed by Kernowsport. Aldi Car Park Diagnostics – A First for Us! Meeting customers in car parks is pretty common for us—it’s often the easiest and most convenient option with plenty of space.But this was a first… Aldi car park in Camborne! That said, it worked perfectly. Just Lidl to go, and we’ll have completed a job in every major supermarket car

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Kernowsport technician preparing to fix AdBlue issue on Vivaro Life 2.0D.

Vauxhall Vivaro Life LWB AdBlue Countdown Resolved in Bodmin

Today’s job was unusual for a couple of reasons. First, our “customer” wasn’t the van’s owner—it was a garage in Liverpool. They had sold a Vauxhall Vivaro Life LWB to a gentleman in Bodmin, and when the vehicle developed an issue under warranty, they contacted Kernowsport to handle the local repair. Within an hour, we were on-site in Bodmin, ready to get the problem sorted. A Rare Vivaro Life – Sourced from Liverpool! The new owner told us he wanted this exact long-wheelbase Vivaro Life model, but couldn’t find one anywhere in the South West.So he travelled all the way to Liverpool to pick it up. Unfortunately, within a week the van began showing an AdBlue countdown—a common problem on this generation of Vivaro, especially around 2019. The base vehicle underneath is actually a 2.0D Vivaro van, which shares many components with the wider Stellantis range. Good News – The 2.0D Can Be Fixed via OBD Most Vivaro AdBlue jobs we see involve the 1.5D engine, which requires ECU removal—a more time-consuming process. But this one was the 2.0D, meaning we could complete the work directly through the OBD port, saving a huge amount of time and avoiding unnecessary dismantling.

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Peugeot Partner 1.6D parked in Bodmin during mobile AdBlue delete by Kernowsport.

Peugeot Partner 1.6D AdBlue Delete in Bodmin During Storm Bran

Today’s job took us up to Bodmin—right in the middle of storm Bran, which made for an interesting day of mobile tuning. Not the ideal time to work outside, but when a customer’s van is facing a no-start AdBlue countdown, we know time is critical. This Peugeot Partner 1.6D belonged to a tradesman who simply couldn’t afford downtime. With the AdBlue system threatening to immobilise the vehicle completely, we headed out immediately to get him back on the road. Peugeot Partner: Our Most Common AdBlue Delete Request Here at Kernowsport, the Peugeot Partner is probably the number one van we get called out to for AdBlue deletes.Interestingly, the 1.6D version is less common—it’s normally the 1.5D or 2.0D engines that cause the most grief. But regardless of engine size, these vans are vital workhorses for tradespeople across Cornwall, and keeping them running is exactly why our mobile service exists. Stormy Weather, Soaked Vans, and a Surprisingly Smooth OBD Job The weather today was something else—sideways rain, gale-force gusts, and even the inside of our van ended up soaked, which is a rare sight. Usually, it’s warm and dry in there even on the worst Cornish days! Fortunately: Had the battery

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Volkswagen Amarok 3.0D parked in St Eval for AdBlue countdown repair.

VW Amarok 3.0D AdBlue Countdown Fixed in St Eval, Cornwall

This week’s job took us out to St Eval, on what used to be part of the old RAF air base, to meet the lovely Hailey and her stunning Volkswagen Amarok 3.0D. Her Amarok was showing an AdBlue countdown that needed sorting before a trip up-country at the weekend—so we were happy to help. Why the VW Amarok 3.0D Is One of Our Favourites We tune a lot of pickups here in Cornwall—Ford Rangers, Nissan Navaras, Isuzu D-Max, Toyota Hilux—but if we had to pick a favourite, the VW Amarok 3.0 V6 TDI would be right up there. Reasons we love them: Hailey’s Amarok didn’t need a remap today, but after seeing the difference our maps make, we’re sure she’ll be tempted next time! Fast AdBlue Fix With the Kess 3 St Eval has a certain nostalgic charm—with street names inspired by historic aircraft—but we didn’t have long to admire the surroundings.This was a straightforward Volkswagen job, perfect for our Alientech Kess 3 tuning tool. The process on these Amaroks is typically: Within a short time, we had the AdBlue countdown cleared and everything functioning as it should. Then it was off to St Austell for the next job of

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Vauxhall Combo 1.5D van in Rock, Cornwall, before AdBlue countdown diagnostics.

Vauxhall Combo 1.5D AdBlue Countdown Fixed in Rock, Near Wadebridge

We’ll be honest—there was a time when we weren’t big fans of the little 1.5D Stellantis vans (Vauxhall Combo, Citroën Berlingo, Peugeot Partner).But after working on so many variations of them at KernowSport, we’re starting to really enjoy these jobs! This week we were called out to Rock, just outside Wadebridge, to sort out an AdBlue countdown on a Vauxhall Combo 1.5D. These vans are everywhere in Cornwall, and the AdBlue system on this platform is notorious for causing issues. Why These Vans Are Much Faster for Us Now After seeing a huge number of these vans come through our hands, we invested in specialist ECU cables designed specifically for the Stellantis platform. And honestly?It has transformed how we work on them. Before: Now: This makes the process not only quicker, but also safer and far more efficient for the customer. A Faster Fix for the Rock & Wadebridge Area Using our upgraded setup, we quickly resolved the AdBlue countdown and confirmed everything was functioning as it should.This was actually the third Stellantis van we’ve done this week alone, so they’re rapidly moving onto our “favourites” list! If you run a fleet of Combo, Partner, Berlingo or Proace vans in

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