Description of the fuel injection system MAZDA 323 models are also equipped with an electronic fuel injection system. The injection system is controlled by the control unit. This control unit receives from...
Injection fault memory Failure and short-term malfunctions of the sensors are recorded in the fault memory of the control unit. Recorded faults can be read out in workshops using a special...
Safety precautions when working with the injection system Do not start the engine if the battery is not connected securely. Do not use a quick charger to start the engine. Never disconnect the battery from the on-board network...
Idling check BP engines have an electronic idle control system, so idle adjustment is not possible on these engines. Elements of the injection system Scheme of the injection system...
Checking the CO content Attention! On vehicles with a catalytic converter, the CO content cannot be checked or adjusted. Check condition : Check the exhaust system by blocking the rear exhaust...
Check/Adjust Throttle Sensor Vehicles with manual transmission The throttle position sensor should be checked if the engine has poor throttle response, erratic idle, and is not reaching maximum...
Checking injection valves (injectors) The injection valves inject fuel intermittently, i.e., one revolution of the crankshaft injects half of the fuel required for one intake stroke. In this case, the valve...
Removal and installation of injection valves Removing 1. Disconnect the ground cable from the battery. Attention! This erases the data from the engine fault memory or the radio's security code. Before disconnecting...
Fuel pump check If the engine starts poorly or does not start at all, and also stalls while driving, check the operation of the fuel pump. The fuel pump is located in the fuel tank. The...