Harness type overview

The most basic harness that RAT Wire offers, converting the inputs and outputs from the factory wiring harness to fit a standalone ECU. Sometimes this leads to loss of functionality when the factory ECU communicates with other modules in the car. Some examples of this would be losing Air Conditioning because the AC compressor clutch is electronically controlled and the ECU is told to idle up when the AC button is pressed inside of the car. To avoid this, we can integrate a CAN converter module.

RAT Wire's dual ECU harness is the easiest way to tune your car without having to lose any functionality (Keep Gauges, AC, Automatic Transmission control.) This harness allows you to keep your factory ECU and lets it manage all non engine functions like those mentioned above, giving the engine functions to a standalone ECU. This allows your car to keep OBD2 for inspections and retain all creature comforts while being able to easily and safely tune your car. Extra sensors can also be added.

A fully terminated engine harness is the ULTIMATE solution to tuning your car. By choosing to buy a custom engine harness, you can convert to coil on plug ignition, install larger injectors from any brand, add boost sensors, Drive By Wire throttle, Wideband O2, oil pressure and temp, coolant pressure and temp, Intake Air Temperature, EGT and more. Full support for digital dashboards and is the choice of custom car builders everywhere.

A piggyback harness uses a "man in the middle" method of "tuning" your car by sitting in-between the factory ECU and the engine harness. To change the fuel and spark map of your car, it takes inputs from the factory and "piggybacks" off of them, and modifies outputs from the factory ECU by taking signals from the factory ECU and changing them to fit the custom tune on the piggyback ECU