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Simos injection and ignition system
Servicing injection part
Servicing ignition part
=> Repair group 28
Notes:
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◆ Fuel hoses in engine compartment must only be secured with spring type clips. The use of clamp or screw type clips is not permissible.
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◆ The control unit for the fuel injection and ignition system is equipped with a fault memory. Before carrying out repairs and fault finding the fault memory must be interrogated. Also the vacuum hoses and connections must be checked (unmetered air).
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◆ Components marked with * are checked via the self diagnosis.
, interrogating fault memory
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◆ Components marked with ** are checked via the final control control diagnosis => Page 01-33.
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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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◆ Do not use sealants containing silicone. Particles of silicone drawn into the engine, will not be burnt in the engine and damage the Lambda probe.
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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 which is blocking the engine control unit. The fault memory must be interrogated and if necessary the control unit matched => Page 24-71.
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◆ During some checks it can happen 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.
=> Page 01-8, interrogating fault memory
Safety precautions
Rules for cleanliness => Page 24-20
Technical data => Page 24-21
Checking engine operation => Page 24-36
Checking intake system for leaks (unmetered air) => Page 24-85
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