Mobile ECU Remapping — Vans & Campervans

More pull.
Better mpg.
Ready for the road.

WCH Tuning brings dyno-proven ECU remapping and fault diagnostics straight to your driveway, depot or yard across South & West Wales. Trade vans, fleet vehicles and campervans — tuned and fault-checked wherever they're parked.

Get a Free Quote How It Works
We Come To You Fully Insured Euro 6 / ULEZ Safe
WCH Tuning mobile workshop van parked beside a campervan being tuned
On Your Drive. Before Your Next Trip.

What actually happens when we remap your van?

Vans leave the factory tuned conservatively — built to satisfy emissions rules across dozens of markets, not to pull a loaded trailer or a fully-kitted-out conversion at its best.

We connect directly to the ECU and rewrite the fuelling, boost and timing maps that govern how the engine runs — tuned around how your van is actually loaded and driven.

No engine hardware is changed, and nothing is done to your emissions control systems or your conversion's habitation electrics. It's purely an engine ECU software tune.

-14%

Average Fuel Saving

+22%

Average Torque Gain

1,200+

Vehicles Tuned

Zero

Emissions Hardware Removed
What We Tune

Every kind of van — work, fleet or weekend getaway

Panel van being tuned

Panel Vans

Trade and courier workhorses — tuned for lower fuel spend on high daily mileage.

Pickup or ute being tuned

Pickups & Utes

Tuned for stronger towing and load-carrying, on-site or on the road.

Refrigerated chiller van being tuned

Refrigerated Vans

Time-critical chilled and frozen delivery work — tuned and fault-checked to keep runs on schedule.

Crew van or minibus being tuned

Crew Vans & Minibuses

Passenger-carrying vans tuned for smoother, more confident driving fully loaded.

Campervan or motorhome being tuned

Campervans & Motorhomes

Self-builds and factory conversions — tuned for relaxed, confident cruising fully loaded for a trip.

Recovery or breakdown van being tuned

Recovery & Breakdown Vans

Tuned for the extra pulling power these vehicles need to work, day in, day out.

The Process

Five steps. Fitted around your day, not ours.

Step 01

Book Your Slot

Tell us your make, model and what you're after. We quote before we touch the van.

Step 02

We Come To You

Home, yard or depot — daytime, evening or weekend, fitted around your schedule.

Step 03

Full Diagnostics

We scan for existing fault codes and confirm the van is fit to tune before starting.

Step 04

The Remap

Fuelling, boost and timing maps rewritten specifically for your van and how it's used.

Step 05

Test & Handover

Road tested, maps verified, and a quick run-through of what's changed before we leave.

Ready?

Get Booked In

Most remaps are completed in under two hours — ready for the next job or the next trip.

Call WCH Tuning
Beyond Performance

Not every visit is about more power

High-mileage vans — and campervans that sit for weeks between trips — are prone to AdBlue, DPF and EGR faults. Every warning light is a job delayed or a holiday put at risk — we diagnose the real cause and put it right, at your door.

AdBlue / SCR

AdBlue Solutions

Persistent AdBlue faults, dosing errors and countdown warnings resolved, so a tank problem doesn't cost you a day's work — or the first day of a trip.

Emissions

DPF Solutions

Blocked filters, failed regenerations and repeat DPF fault codes diagnosed and resolved on-site — common on vans that do a lot of short, low-speed runs.

Emissions

EGR Solutions

Sticking or faulty EGR valves causing rough running, power loss or fault codes — diagnosed and resolved at the source.

Diagnostics

Fault Code Diagnosis

Full ECU diagnostic scan at your door to pin down exactly what's triggering a warning light or power reduction.

Sensors

Sensor & Actuator Faults

Faulty sensors and actuators properly identified and addressed — not just cleared and left to trigger again.

Limp Mode

Limp Mode Recovery

Van stuck in limp mode? We find the root cause and get full power safely restored.

Book a Diagnostic
Why WCH Tuning

Whether it earns you a living or takes you on holiday, it has to be reliable.

A work van off the road is lost income. A campervan that won't start is a ruined trip. Every tune and every fault-fix we carry out is built around that reliability, not just making the vehicle quicker.

We Come To You

Full mobile workshop, home, yard or depot — no waiting for a garage slot or losing a day to drop-off and collection.

Conversion-Aware Technicians

We work on the engine ECU only — nothing is touched on your campervan's habitation electrics or leisure systems.

Euro 6 / ULEZ Safe

Our tunes work within your vehicle's existing emissions systems, so ULEZ and Clean Air Zone compliance isn't put at risk.

Safe, Reversible Tuning

Every original map is backed up. If a tune ever needs reverting, we can put it back exactly as it was.

For Trades & Fleets

Single-van friendly. Fleet ready.

£

Single-Van Pricing

One clear, upfront quote whether you're tuning a single van or a whole delivery fleet.

⏱

Fitted Around Your Day

Daytime, evening or weekend slots that work around jobs, routes or trip planning.

⚑

Priority Fault Callouts

Existing customers get priority booking when a van drops into limp mode unexpectedly.

✓

Multi-Vehicle Discounts

Running a fleet of trade or courier vans? Rates improve the more vehicles we tune for you.

Set Up an Account
In Their Words

From trades, fleets and weekend adventurers

★★★★★

"Fuel savings across our courier vans paid for itself within weeks. Turned up on time, done in under two hours per van."

— Fleet Manager, Swansea
★★★★★

"Had our campervan tuned and fault-checked before a three-week trip. Pulled hills so much easier fully loaded."

— Campervan Owner, Carmarthenshire
★★★★★

"Sorted a recurring DPF fault our garage couldn't get to the bottom of. Van's been faultless since."

— Tradesman, Pembrokeshire
Coverage

Mobile across South & West Wales

If you're within reach of these areas, we'll come to you. Based further afield? Get in touch — we regularly travel beyond our core patch for the right job.

Cardiff Newport Bristol Bridgend Merthyr Tydfil Pontypridd Aberdare Caerphilly Barry Cwmbran Blackwood Ebbw Vale Abergavenny Ross-on-Wye West Wales Swansea Neath Port Talbot Llanelli Carmarthen Haverfordwest
Map showing WCH Tuning's mobile coverage across South and West Wales
Questions

Before you book

No emissions hardware is removed or altered. We work within your van's existing AdBlue, DPF and EGR systems, so its Euro 6 status and ULEZ/Clean Air Zone compliance are unaffected.

No. We work exclusively on the engine ECU — nothing is touched on your leisure battery, water system, gas system or any part of your conversion.

Most remaps take under two hours, and full diagnostic and fault-fix visits are usually done within half a day. We know downtime costs you either a working day or trip time, so we work to get you back out quickly.

You should always check with your insurer, as some require modifications to be declared. We're happy to provide documentation of the work carried out to support that conversation.

Yes — the more vehicles in your fleet, the better the per-vehicle rate. Single vans are just as welcome, and there's no minimum fleet size to get started.

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