Chiptuning & ECU development
Loja Consulting develops custom calibration files for every ECU on the market. Stage tuning, depollution, flex fuel, pop & bang: a complete file service for chiptuning professionals.
Stage 1, 2 and 3 - Power optimization
Stage optimization modifies ECU calibration maps: injection, turbo boost pressure (boost map), ignition timing (ignition map) and torque limiter. The result is a significant, dyno-measurable gain in power and torque.
Each file is custom-developed based on the ECU, vehicle and desired configuration. Component protection remains fully functional.
Stage 1
Software optimization without mechanical modifications. Recalibration of factory maps for immediate power and torque gains.
+15 to 30% powerStage 2
Calibration adapted for vehicles with mechanical upgrades: intake, downpipe, intercooler.
+30 to 50% powerStage 3
Advanced calibration for heavily modified vehicles: turbo, injectors, high-pressure pump, reinforced clutch.
+50% and more
EGR Off, DPF/GPF Off, AdBlue Off
We develop emission system deactivation files. Each modification is performed cleanly with associated DTC removal, preventing limp mode activation.
EGR Off
The EGR valve (Exhaust Gas Recirculation) recirculates exhaust gases into the intake, causing premature engine carbon build-up. Software deactivation instructs the ECU to permanently hold the valve in closed position.
- Complete deactivation in the ECU
- Associated DTC removal
- Improved engine response and reduced carbon build-up
DPF / GPF Off
The particulate filter (DPF diesel / GPF petrol) clogs over time, causing power loss. Software deactivation removes regeneration cycles and DPF structures in the ECU to prevent limp mode.
- Regeneration cycle deactivation
- Differential pressure sensor removal
- Compatible with diesel (DPF) and petrol (GPF)
AdBlue / SCR Off
The SCR system (Selective Catalytic Reduction) uses AdBlue to reduce NOx emissions. Software deactivation disables the pump, SCR injectors and associated diagnostic maps.
- Complete SCR logic deactivation
- NOx and AdBlue DTC removal
- AdBlue emergency mode deactivation
Flex Fuel E85 conversion
Flex fuel conversion through remapping adjusts the ECU's injection and ignition maps to support E85 bioethanol, SP95 or any blend. Unlike piggyback modules, the calibration directly modifies the ECU firmware.
In advanced flexfuel mode, an ethanol content sensor transmits alcohol levels to the ECU, which dynamically adjusts injection and ignition based on the detected blend. Compatible with most petrol vehicles.
- Dynamic adjustment based on ethanol content
- Compatible with SP95, E85 and any blend
- No piggyback module, direct firmware modification
- Significant savings (E85 ~40% cheaper)
Options & customizations
Beyond stages and depollution, we offer a wide range of options to customize your vehicle's behavior.
Pop & Bang / Crackle Map
Overrun mapping: fuel cut deactivation and ignition retardation for exhaust pops and crackles. Adjustable intensity (soft/hard pops).
Hardcut Limiter
Replacement of the progressive rev limiter with a hard cut limiter with clean fuel injection cutoff. Characteristic sound at the rev limiter, popular on sport builds.
Vmax removal
Removal of the top speed limiter programmed in the ECU. The vehicle reaches its mechanical top speed without electronic limitation.
Cold Start removal
Deactivation of over-fueling and elevated idle on cold start. The engine starts directly at normal idle without the noisy warm-up phase.
Start & Stop deactivation
Permanent deactivation of the Start & Stop system in the ECU. No more pressing the button at every engine start.
Sensor / injector configuration
ECU recalibration when changing injectors, sensors or parts with different characteristics from stock (larger injectors, MAP sensor, etc.).
Launch Control
Activation or calibration of launch control in the ECU. Holds engine RPM at a defined threshold at standstill for optimal launches.
Swirl Flaps Off
Deactivation of intake swirl flaps in the ECU. Prevents mechanical failures related to flap wear.
Mapswitch
Mapswitch stores multiple calibrations in the ECU and lets you switch between them via a combination of actions (pedal, cruise control, etc.). Each map can independently modify boost, injection and ignition maps.
We develop many custom options. This list is not exhaustive — contact us for any specific request.
TCU remapping — Gearbox stage
TCU (Transmission Control Unit) remapping optimizes shift times, shift points and transmitted torque management. Essential to fully exploit a motor stage.
TCU Stage 1
Optimization of shift times and shift points. Increased transmissible torque to match a stage 1 engine tune.
TCU Stage 2
Faster shifts, increased torque tolerance, kick-down strategy adjustment and temperature protection tuning.
TCU Stage 3
Complete calibration for reinforced gearboxes: ultra-fast shifts, torque limitation removal, optimized launch control mode.
TCU Options
- Comfort mode removal / permanent sport mode activation
- Flat shift (no torque cut on gear change)
- Downshift strategy adjustment
- Temperature tolerance increase
All ECU platforms on the market
Our calibration engineers master all major ECU platforms: Bosch, Siemens, Continental, Delphi, Denso, Marelli. Reading and writing via OBD, bench, boot mode and BDM.
Frequently Asked Questions
Find answers to the most common questions about our chiptuning services.
ECU remapping involves modifying the parameters of the vehicle's engine control unit (ECU) to optimize performance, torque and sometimes fuel consumption. Loja Consulting develops professional calibration files tailored to each vehicle.
Stage 1 is a software-only optimization with no mechanical modifications, offering +20 to 30% power gain. Stage 2 requires hardware modifications (intake, exhaust, intercooler) for +30 to 50%. Stage 3 is a full custom calibration for heavily modified vehicles, with +50% and more.
Yes, our E85 conversion is done directly through the ECU. The calibration adjusts injection, timing and mixture tables to allow the vehicle to run on E85 bioethanol, SP95/98 or any blend of both.
Log in to files.loja-consulting.fr, upload the original file read from your client's ECU, select the desired services, and receive the optimized file ready to flash. The service is available 24/7.
We support over 100 ECU types: Bosch EDC17, MED17, MD1, MG1, ME7, Siemens SID, Continental SID, Delphi DCM, Denso, Marelli, Simos 18, MEVD17, PCR2.1 and many more. Check our simulator to verify your vehicle's compatibility.
Fill out the form on our Become a Partner page. We review each application and offer a dedicated panel with access to the file service, exclusive mappacks and a custom website for your workshop.