How I Diagnosed & Fixed Recurring DPF Regen Failures

A diesel particulate filter in the exhaust system in a car on a lift in a car workshop, seen from be

When a customer from Leicester called us about their diesel car going into limp mode every few days, the cause was obvious — the DPF regeneration process kept failing. This real-world case shows how proper diagnostics and ECU calibration fixed the issue permanently without removing the DPF. How the Problem Started The driver noticed the […]

EGR Removal Near Me: Is It Safe, Legal, and Worth Doing?

Understanding the Check Engine Light

What Is EGR Removal? Most modern diesel engines use an Exhaust Gas Recirculation (EGR) valve. It feeds some exhaust gases back into the engine to reduce emissions. Over time, the EGR valve clogs with soot and carbon. This leads to rough idling, poor fuel economy, and dashboard warning lights. EGR removal is software that disables […]

Can You Delete EGR Without Touching the DPF?

blue coupe beside gray house

Many drivers contact Leicester Remaps asking the same question — can you delete the EGR valve but keep the DPF working? On paper it sounds simple, but the two systems talk to each other constantly. Here’s what you need to know before making that change. How the EGR and DPF Systems Work Together The EGR […]

Does ECU Remapping Affect Insurance in the UK?

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Does ECU Remapping Affect Insurance in the UK? If you are thinking about a remap, insurance sits near the top of the “should I?” list. This guide explains what usually happens, what to tell your insurer, and how to avoid nasty surprises later. Call 07849 475153 Book a Remap Stage 1 Service Page The short […]

DPF Regulations 2025: What Leicester Drivers Need to Know

DPF Solutions Explained

DPF Regulations 2025: What Leicester Drivers Need to Know From 2025, diesel particulate filter (DPF) rules tighten across the UK. For drivers in Leicester and Leicestershire, this means stricter MOT checks and bigger fines for non-functioning filters. Whether you drive a van in Wigston, a commuter diesel from Loughborough, or a fleet vehicle in Hinckley, […]

Common-Rail Diesel Tuning Explained

a close up of a gas pump with a car in the background

Modern diesel engines are far more advanced than their predecessors, thanks to common-rail injection technology. But how does it actually work — and how can an ECU remap safely improve performance? In this guide, Leicester Remaps explains the science behind diesel tuning and what makes common-rail systems ideal for reliable power gains. What Is Common-Rail […]

AdBlue System Repair vs AdBlue Delete: Cost

a car parked on the side of the road

AdBlue System Repair vs AdBlue Delete: Cost, Downtime and Long-Term Considerations Modern diesel cars and vans rely on AdBlue systems to control NOx emissions and stay within UK road-legal requirements. When everything works, you barely think about it. When it fails, the warnings, limp mode, and no-start countdowns can bring life to a halt. Many […]

AdBlue Crystallisation: Causes

a close up of a gas pump with a car in the background

AdBlue Crystallisation: Causes, Symptoms and How to Prevent Expensive Repairs You walk up to your car or van, open the AdBlue cap, and see white crusty deposits. Or you spot a patch of white crystals under the vehicle. Soon after, the dash lights up with an “AdBlue system fault” or a no-start countdown. AdBlue crystallisation […]