EGR delete in Atherton

Software-based ECU remap. EGR disabled permanently. We come to you in Atherton, £220.

For off-road and track use only.

Mobile We come to you
Software only No physical parts removed or replaced
Flat £220 No surprises
Same or next day In most cases

Service explainer

The EGR (exhaust gas recirculation) valve routes a controlled portion of exhaust gas back into the intake manifold. Its purpose is to reduce combustion temperature and lower NOx output. On a diesel engine doing mixed motorway driving, the system can function tolerably. On a diesel doing short runs, urban work, and regular idling, the kind of driving common around Atherton and the surrounding Wigan borough, the carbon load in the recirculated exhaust builds up faster than normal operating heat can clear it.

The valve fouls. Carbon accumulates in the intake passages. The ECU detects that the EGR circuit is not performing within its mapped parameters, logs a fault code, and reduces engine output to protect the drivetrain. That is limp mode.

A software EGR delete addresses this by removing the EGR system from the ECU's operating map entirely. We connect via the OBD port, write the modified map, and the ECU stops commanding the EGR valve. The valve itself stays physically in place, nothing is unbolted, no blanking plate is fitted, no corroded fixings are disturbed. The engine runs without the EGR cycle. Fault codes are cleared before we leave.

Exhaust after-treatment hardware on a diesel vehicle
Technician reading a diagnostic tablet from the driver's seat of a van

Vehicle types

We carry out EGR deletes on a wide range of diesel vehicles. Common vans and commercials we work on include the Ford Transit (2.0 TDCi and EcoBlue), Mercedes Sprinter (CDI), Vauxhall Movano and Vivaro, Volkswagen Transporter T5 and T6 (TDI), Volkswagen Crafter, Renault Trafic and Master, and Fiat Ducato. We also work on diesel cars across most mainstream manufacturers.

Compatibility depends on the availability of a tuning file for your specific make, model, engine variant, and year. The majority of vehicles built in the last fifteen years have file support, but if you have a less common engine or a newer ECU variant, call us before booking and we will confirm. Do not assume compatibility, a quick check saves a wasted journey.

Mobile process

We arrive at your location in Atherton, home, workplace, yard, or car park.

Pre-remap diagnostic

all current fault codes are read and logged before anything is written.

ECU remap written via OBD port

the EGR cycle is disabled in software.

Verification

the modified map is confirmed written correctly, the engine is restarted and checked.

Fault codes cleared

any stored EGR codes are removed.

Done, typically 60 to 90 minutes from arrival.

No recovery required. No garage appointment. No need to pre-strip anything from the vehicle. We need a space to park alongside your vehicle and access to the OBD port, which is located inside the cab on most vans and cars.

Cost comparison

The EGR delete is £220. That covers the visit, the remap, and the verification. No diagnostic fee on top, no call-out charge, no per-hour rate. If you want the DPF removed in the same visit, the combined DPF and EGR delete is £445.

For comparison: a physical EGR valve replacement typically costs £300 to £700 fitted, depending on the vehicle and whether corroded fixings or surrounding components add time. For vans that have already been through one replacement, or are on their second or third cleaning cycle, the software delete at £220 is a single, permanent visit. The numbers are straightforward.

Reading stored fault codes on a diagnostic tablet in the cab

FAQs

What if the fault is a hardware failure rather than a software issue?
A failed EGR valve, one that is mechanically seized, physically broken, or leaking, will still generate fault codes. A software delete removes the ECU's commands to the valve and suppresses EGR-related fault codes, so the hardware failure no longer causes the engine management system to intervene. The valve stays in place but is no longer active. Call us if you are unsure whether your fault is hardware or software, we can advise based on your specific codes and symptoms.
How is a software EGR delete different from fitting a blanking plate?
A blanking plate physically blocks the EGR valve's port to stop exhaust gas recirculation. It involves dismantling components, removing the valve or associated pipework, and fitting a plate. Without a corresponding ECU remap, the engine management system continues to command the EGR valve, detects that it is not operating correctly, and logs a fault, which can cause limp mode. A software delete removes the EGR cycle from the ECU map entirely. No dismantling. No blanking plate. No conflict between the hardware and the software.
Can you remap a vehicle that has already had an EGR valve replaced?
Yes. A replacement valve does not affect ECU mapping. The software delete works the same way regardless of whether the valve is original or new. The remap disables the EGR cycle in software, the physical condition of the valve is not relevant to that process.
What happens if the ECU will not communicate?
If we cannot establish communication with the ECU via the OBD port on arrival, we will diagnose why before proceeding. Common causes are a faulty OBD port, a blown fuse, or an ECU that requires a specific protocol we need to confirm in advance. If the vehicle has an unusual or protected ECU that prevents the remap, we will let you know on the day. In that case there is no charge for the aborted visit.

Book your mobile EGR delete in Atherton

Book your mobile EGR delete in Atherton, call 0161 694 7331. The job is £220 for an EGR delete, £445 for a combined DPF and EGR delete in one visit. Software-based, no dismantling, we come to you. Same-day and next-day availability is common.

For off-road and track use only.