Performance • Power • Precision

Power you can feel.Calibration you can trust.

AHR Tuning writes custom ECU calibrations and resolves emissions-system faults on cars, 4x4s, vans and HGVs — read, mapped and verified on your vehicle, at your yard or driveway.

Call 085 772 9915 WhatsApp us

Mobile tuning service — we come to you. Cars, 4x4, Vans & HGV

CAL / PER VEHICLE Every map is written to the vehicle in front of us — not pulled off a shelf.

01 / SERVICEMobile service
02 / COVERAGECars, 4x4, Vans & HGV
03 / METHODCustom ECU calibration

What we do

Four jobs, done properly

Diagnostics first, calibration second. Whether it’s a family diesel with a blocked filter or a truck losing drivability under load, the work starts with reading the vehicle and ends with verifying it back on the road.

ECU remapping & custom calibration

Original file read, backed up, then adjusted on a per-vehicle basis — fuelling, boost, torque limiters and pedal response tuned around how the vehicle is actually used. Choose a performance-led map, an economy-led map, or a balance of both.

Stock file backup retained before any change
Performance, economy or blended calibration goals
Towing and load-focused maps for vans and HGV
Road-test verification and post-map log review

DPF diagnostics, cleaning & regeneration support

Blocked filters, failed regens and repeat warning lights usually point to something upstream. We read the fault history and live data, establish the underlying cause, then clean and support regeneration so the filter can do its job again.

Live soot, ash and differential-pressure readings
Sensor, EGR and injector-related root-cause checks
On-vehicle filter cleaning and forced regeneration
Guidance on driving patterns that cause repeat blockage

AdBlue / SCR diagnostics

AdBlue faults strand vans and trucks with countdowns, derates and limp mode. We diagnose the SCR system properly — pump, injector, NOx sensors, quality sensors and dosing behaviour — and resolve the fault so the system runs as designed.

Full SCR fault-code and live-data diagnosis
Dosing, pressure and NOx sensor testing
Compliant fault resolution and system reset
Fleet-friendly callouts to minimise downtime

EGR diagnostics & carbon cleaning

Carbon build-up in the EGR circuit, inlet manifold and valves shows up as rough running, smoke, poor economy and stored faults. We test valve operation and flow, then clean the affected passages to bring airflow back where it should be.

EGR valve, cooler and actuator testing
Inlet and valve carbon-deposit cleaning
Fault clearing with post-clean data check
Advice on service intervals to slow re-fouling

Process

Diagnose. Calibrate. Verify.

Three stages, same order, every job. It’s the part that separates a written calibration from a file copied onto an ECU.

Diagnose

Full fault-code and live-data read before anything is written. Mechanical condition, sensor health and service history all shape whether tuning is appropriate — and we’ll say so if it isn’t.

Calibrate

Original file backed up, then a map written for that engine, gearbox, fuel and duty cycle. Adjustments are made in stages and kept inside manufacturer mechanical limits.

Verify

Road test with live logging, checks on boost, fuelling and temperatures, then a final review with you. If something needs refining, it gets refined before we leave.

Coverage

Cars, 4x4, vans & HGV

Same discipline across the yard — a hot hatch and a tractor unit want very different things from a calibration, and both get a file written for the job they actually do.

Cars

Petrol and diesel calibration for daily drivers, family cars and performance builds — response and economy balanced to how you actually drive.

4x4

Torque delivery tuned for towing, load and low-speed control.

Vans

Working-van maps for economy, response and long-haul reliability.

HGV

Fleet and owner-operator calibration, plus SCR and DPF diagnostics kept on the road with minimal downtime.

What tuning can do

Built for your drive

More power. Better economy. Maximum reliability. Results vary with engine, condition and how the vehicle is driven — here is what a well-executed calibration aims for.

Schematic illustration of the shape a calibration aims for. Axes are deliberately unnumbered — actual figures depend entirely on the individual vehicle.

POSSIBLE OUTCOME 01
Sharper response, cleaner torque delivery

Pedal response and mid-range pull are usually where a calibration is felt first — less waiting for the engine to come alive, smoother overtakes, easier pulling away under load.
POSSIBLE OUTCOME 02
Efficiency-focused calibration

Where economy is the priority, the map is written around your typical duty cycle. Steady motorway and load-carrying work tend to see the most benefit; heavy right feet see the least.
POSSIBLE OUTCOME 03
Drivability that lasts

Changes are kept within manufacturer mechanical limits and verified on the road, so the vehicle stays predictable and serviceable long after the callout.

Get a quote

Tell us the vehicle. We’ll tell you what’s possible.

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Phone — call or WhatsApp: 085 772 9915
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Where we work: Mobile tuning service — we come to you.

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