General Notes on Fuel Injection - II

General Notes On Fuel Injection

- Fuel hoses in engine compartment may only be secured with spring clamp Original parts distributor. The use of clamp or screw type clips is not permissible.
- Ignition must be switched off when disconnecting the battery. Obtain radio code for radios with anti-theft coding before disconnecting battery.
- For trouble-free operation of the electrical components a voltage of at least 11.5 V is necessary.
- Do not use sealants containing silicone. Particles of silicone drawn into the engine, will not be burnt in the engine and damage the oxygen sensor.
- If the engine only starts briefly and then turns off again after troubleshooting, repair or checking of the components, it may be that the immobilizer is blocking the Engine Control Module (ECM). Control module must then be adapted if necessary.
- It is possible that the control module will recognize a malfunction and store a DTC during some tests. Therefore after completing all checks and repairs the DTC memory must be checked and if necessary erased.
- Vehicles with an airbag are equipped with a crash fuel shutoff system. It reduces the danger of a fire in a crash as the fuel pump is switched off via the fuel pump relay. At the same time, this function improves comfort of engine start-up behavior. When opening the door, the fuel pump is activated for 2 seconds to build pressure in the fuel system.