Diesel Fuel Injection

Diesel Fuel Injection

NOTE:
- Engine Control Modules (ECM) are equipped with On-Board Diagnostics (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 Modules (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.
- Vacuum hoses must not be clogged or kinked.







- Spring clip installation tool VAS5024A is recommended for installing spring-type clips.
- 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.

- Check DTC memory,
- Erase DTC memory.
- For completion, generate readiness code.