Multipoint fuel injection systems The fuel system consists of a fuel tank, which is installed under the bottom of the car (with electric fuel pump immersed in the tank), fuel filter, supply and return hoses, fuel injectors and fuel pressure regulator....
Air filter — removal and installation Early models and all models with an air filter located on the left side of the engine 1. Remove the multi-pin plug of the air flow meter. 2. Loosen the clamp on the top air supply pipe to the engine. 3. To remove the...
Accelerator cable — removal and installation Removing the accelerator cable from the throttle sector (Bosch L3 system. l) Removing the sheathed cable from the thrust sleeve (Bosch L3 system. l) The design and installation of the cable are similar to those...
Fuel injection systems The ECU Fuel Injection System is a self-tuning system that monitors and stores data to ensure optimum engine performance under varying loads. When the battery is disconnected, the data is erased and to restore them, you...
Checking and adjusting fuel injection systems Attention! When working on the fuel system, you must first remove the pressure in the system. Relieve pressure in the fuel system 1. Remove ground wire from battery. 2. Slowly loosen the union nut in the fuel line to...
Throttle body — removal and installation Removing 1. Remove ground wire from battery. Bosch Jetronic system 2. Remove the air flow meter. 3. Remove the accelerator cable from the throttle actuator. 4. Drain coolant or pinch coolant hoses near housing. 5....
Elements of the Bosch L3.1-Jetronic injection system Initial throttle setting Starting throttle position 1. Remove the accelerator cable and throttle position switch. 2. Loosen the throttle actuator lever bolts, turn the actuator fully counterclockwise, then tighten the...
Elements of the Bosch LU2-Jetronic injection system The elements of the Bosch LU2-Jetronic engine management system are similar in operation to the Bosch L3 system. 1-Jetronic described above, except for the throttle position and the presence of an oxygen sensor....
Elements of the Bosch Motronic injection system Fuel line and injectors 1. Remove ground wire from battery. 2. Relieve pressure in the fuel system. 3. Remove the sensor tube on the pressure regulator and unscrew the regulator mounting bolt. 4. Remove the electrical...
Elements of the Magnetti Marelli injection system 1.8 liter models Fuel injectors 1. Remove ground wire from battery. 2. Remove air filter. 3. Unscrew the two bolts securing the wires to the top of the manifold. 4. Remove the electrical connectors from the injectors....
Intake manifold — removal and installation Application of sealant when installing the manifold Check the presence of guide pins when installing the manifold The guide pin is indicated by an arrow. Intake manifold installation Screwing the manifold mounting bolts...
ACAV air supply system (models with 16 valves) To guarantee optimum efficiency at high engine speeds and maximum power at lower engine speeds, 16-valve models have a variable duct intake manifold. The system is called ACAV ("variable acoustic characteristic...