Fuel Injection System: Notes
For all fuel injection system component locations. Refer to.
For all fuel injection system removal/installation procedures and torque specifications. Refer to the service information.
Observe Safety Precautions FUEL INJECTION SYSTEM
View Technical Data FUEL INJECTION SYSTEM
Engine Control Module (ECM) is equipped with On Board Diagnostic (OBD). Always check DTC memory first, before performing repairs or troubleshooting. Vacuum hoses and connections should also be checked (false air).
For the electric components to work properly, a voltage of at least 11.5 V is required.
Do not use any silicone sealant. Traces of silicone components which are sucked into the engine are not burned there, and they damage the oxygen sensors.
The battery must only be disconnected and connected with the ignition switched off, since the Engine Control Module (ECM) can otherwise be damaged.
Fuel hoses at engine must only be secured with spring-type clamps. The use of clamping collars or screw clamps is not permitted.
Spring clip installation tool VAS 5024A is recommended for installing spring-type clips.
Vacuum hoses must not be clogged or kinked.
Vacuum lines and hose connections must not have leaks.
Engine Control Module (ECM) is equipped with On Board Diagnostic (OBD).
Components marked with * are tested via On Board Diagnostic (OBD), Diagnostic mode 3: Check DTC memory.
It is possible that the control module will recognize a malfunction and store a DTC during some tests. Therefore the following work steps must be performed in the mentioned sequence after ending all tests and repairs.
After the repair work, the following work steps must be performed in the following sequence:
- Check the DTC memory. Refer to DIAGNOSTIC MODE 03 - READ DTC MEMORY .
- If necessary, erase the DTC memory. Refer to DIAGNOSTIC MODE 04 - ERASE DTC MEMORY .
- If the DTC memory was erased, generate readiness code. Refer to READINESS CODE .