User manual

Swap-Jetronic - a professional conversion kit for upgrading engines from K/KE-Jetronic mechanical injection to modern electronic fuel injection (EFI) and microprocessor-controlled ignition. Suitable for Audi, Mercedes, VW, BMW, Saab, etc.

2 configuration options using a single engine wiring harness (to simplify installation and tuning, the process is split into two stages):

- Injector Stage 1. Installation of a new fuel system and injection management system. The ignition system remains stock (factory). Synchronization via the factory Hall sensor in the distributor or TD signal (Mercedes).
Injection mode: semi-sequential (batch fire).
You can stop at this stage and operate the vehicle, or proceed to the next stage.

- Injector+ Stage 2. Installation of a trigger wheel and CPS (required for this stage). Installation of individual ignition coils (coils not included in the kit). The wiring harness already includes all necessary connectors.
Result: fully sequential injection and ignition system.

Kit Contents:

ECU EC61
CanA1 PC connectivity adapter + USB cable
Aluminum fuel rail
Fuel filter with integrated pressure regulator (FPR), fuel lines, quick-disconnect fittings
Fuel injectors — N/A engines: 190 cc / Turbo engines: 241 cc
Injector adapters (cups) (contents depend on engine model)
Engine wiring harness
Sensor kit: MAP (Manifold Absolute Pressure), CLT (Coolant Temperature), IAT (Intake Air Temperature), CPS (Crankshaft Position)

Available Configurations:
– 4 cylinders (4 injectors, stock ignition) — "Injector" stage
– 4 cylinders (4 injectors, 4 individual coils, sequential spark) — "Injector+" stage

– 5 cylinders (5 injectors, stock ignition) — "Injector" stage
– 5 cylinders (5 injectors, 5 individual coils, sequential spark) — "Injector+" stage

– 6 cylinders (6 injectors, stock ignition) — "Injector" stage
– 6 cylinders (6 injectors, ignition modules or individual coils, wasted spark) — "Injector+" stage

– 8 cylinders (8 injectors, stock ignition) — "Injector" stage
– 8 cylinders, (8 injectors, 8 individual coils, wasted spark) — "Injector+" stage

Staged Modernization
Ability to start the engine on the new injection system using the stock ignition for quick tuning and operation — "Injector" stage.
Later — install a trigger wheel, CPS, and switch to a modern ignition system to unlock the full potential of the engine — "Injector+" stage.

High-Performance ECU — EC61
- Architecture based on a powerful 32-bit ARM processor
- Support for naturally aspirated and turbocharged engines
- 8 universal outputs (injector channels)
- 5 ignition control channels
- Support for any trigger wheels and sensor types (VR / Hall)
- Programmable auxiliary outputs
- Peripheral control: fuel pump, starter, electric fan, boost solenoid (wastegate), etc.
- CAN bus — connectivity for Android dashboard apps (tablet/smartphone)
- Real-time on-line tuning on a running engine
- Automatic fuel map tuning function (Auto-tune) — standalone within the ECU

Professional Wiring Harness
- High-quality automotive grade wire (standard compliant)
- Color coding of every wire according to the schematic
- Integrated relay and fuse block within the kit harness
- Fully autonomous power system: power connection to battery and ignition switch signal

Well-Designed Fuel System
- Returnless type aluminum fuel rail — minimum connections, high reliability
- Compact profile for installation in tight spaces without mechanical modifications
- Fuel pressure regulator (FPR) integrated into the fuel filter — simplified fuel lines
- Fuel hoses with quick-disconnect fittings — modern installation standard

Tuning Software — ECar manager
- Free software
- Fully customizable interface (Drag-and-Drop) — tables and gauges can be placed arbitrarily
- Save calibrations to file
- Convenient visualization: 2D/3D tables and graphs
- Parameter display: gauges, graphs (logger), digital values
- Cloud calibration library: download ready-made presets for engines, sensors, and tables from the server
- Automatic software and controller firmware updates
- ECU firmware update directly from the application