| General notes on injection |
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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 first interrogated. Also check vacuum hoses and connecting pipes (unmetered air). |
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| Components marked with are checked via the self-diagnosis → Chapter, Fault memory: interrogating and erasing. |
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| For trouble-free operation of the electrical components, a voltage of at least 11.5 V is necessary. |
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| Disconnecting and connecting the battery must only be done with the ignition switched off, otherwise the engine control unit could be damaged. |
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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 immobiliser which is blocking the engine control unit. The fault memory must be interrogated and, if necessary, the control unit matched → Chapter. |
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| Do not use sealants containing silicone. Particles of silicone drawn into the engine, will not be burnt and can damage the Lambda probe. |
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| During some checks, it is possible that the control unit will recognise and store a fault. Therefore, after completing all checks and repairs, the fault memory must be interrogated and, if necessary, erased → Chapter, Fault memory: interrogating and erasing. |
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| Always replace clamp-type clips with spring-type clips. |
| Checking intake system for leaks (secondary air) → Chapter. |
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