Fuel Is Your Biggest Running Cost

At £1.50 +/l, a 30-van fleet covering 20 k miles each can burn £400 000+ a year in diesel.
Our Eco Remap trims consumption by 8–12 % while lifting low-down torque—ideal for route vans and couriers.

What Exactly Changes?

No “smoke maps” or DPF risk—OEM safety limits untouched.

“My DPF Light Keeps Coming Back!”

A clogged Diesel Particulate Filter (DPF) is the #1 reason Renault–Nissan 1.6 dCi and Vauxhall 2.0 CDTi vans limp into our workshop.
Below we break down why DPFs clog, common myths, and the legal fixes we use every day.

1 · Short Urban Journeys

Low-speed, stop–start routes never heat the exhaust enough for passive regeneration.
After ~200 km of “cold” running, soot loads reach 45 % and the ECU demands a forced regen.

Rough Idle? Might Be Your Injectors

Your injectors fire up to 30 000 times a minute.
When one goes out of balance, you’ll feel the difference fast—poor MPG, smoky exhaust, maybe even limp mode.

Below are the five red-flag symptoms we see every week on Trafic, Vivaro, Master and Movano vans.

1 · Diesel Knock at Idle

A metallic tap that disappears above 1 500 rpm often means one injector over-fuelling.