| General information: ignition system |
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| Only the components which specifically relate to the ignition system are dealt with here. The other components may be found in the injection system → Chapter |
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| The control unit for the fuel injection and ignition system is equipped with self-diagnosis. Before carrying out repairs and fault finding, the fault memory must be interrogated → Chapter. Also, the low pressure hoses and connections must be checked (infiltrated air). |
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| Before disconnecting and reconnecting the battery, switch off the ignition. If this precaution is not taken, the engine control unit may be damaged. |
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| For the perfect functioning of electrical components, a minimum voltage of 11.5 V is necessary. |
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| If the engine starts, runs for a short period and then stops, after fault finding, repairs or component tests, then the fault may lie with the immobilizer blocking the engine control unit. The fault memory must be interrogated and, if necessary the control unit matched → Chapter; Functions and components: adapting. |
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| Certain tests may lead to a fault being detected by the control unit and stored. Therefore, the fault memory must be interrogated and deleted if necessary, after all tests and repairs have been completed → Chapter |
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| Vehicles with an airbag are fitted with a crash fuel shut-off. This system reduces the risk of a vehicle burning in the event of a crash in that the fuel pump is switched off by the fuel pump relay. At the same time, better engine starting is achieved. When the door is opened, the fuel pump is activated for 2 seconds in order to build up pressure in the fuel system. |
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