1. Fuel Pump Wiring: The 106 GTi fuel pump requires a higher current draw than the stock 1.1 fuel pump. The original wiring may not be able to handle the increased load, so a relay and thicker wiring should be installed to provide adequate power to the fuel pump.
2. Fuel Injector Wiring: The 106 GTi fuel injectors have different electrical characteristics compared to the 1.1 injectors. The wiring harness may need to be modified or replaced to accommodate the higher impedance of the GTi injectors.
3. Crankshaft Position Sensor (CPS) Wiring: The 106 GTi engine uses a crankshaft position sensor (CPS) to monitor engine speed and timing. The 1.1 engine may not have this sensor, so the necessary wiring and sensor mount must be installed.
4. Knock Sensor Wiring: The 106 GTi engine also uses a knock sensor to detect engine knock and adjust timing accordingly. If the 1.1 engine does not have a knock sensor, the wiring and sensor mount will need to be installed.
5. Oxygen Sensor Wiring: The 106 GTi engine has an oxygen sensor to monitor the air-fuel ratio and adjust fuel injection accordingly. If the 1.1 engine does not have an oxygen sensor, the wiring and sensor mount will need to be installed.
6. Engine Control Unit (ECU) Wiring: The 106 GTi engine requires a specific engine control unit (ECU) to manage engine functions. If the 1.1 ECU does not support the 106 GTi engine, a new ECU and compatible wiring harness will need to be installed.
It's important to note that these modifications can be complex and may require specialized knowledge and tools. If you are not comfortable performing these wiring modifications, it is recommended to seek assistance from a qualified mechanic or auto electrician.
