VOLVO
ECM-3311 - Injection timing. Signal faulty
System
Engine Control Module (ECM)
Volvo models this fault code applies to
Applies to the following models:
2 modelsS40 (1996–2004), V40 (1996–2004)
Show models by year and engine (2)
What does this fault code mean?
The engine control module compares the desired and the actual position of the injection timing adjustment. If the difference is too large, the code is stored. The cause may be air in the fuel system, a defective timing adjustment valve or needle lift sensor, a defective injection pump, or an incorrectly set pump.
Possible causes
- Defective timing adjustment valve
- Defective needle lift sensor
- Incorrect setting of the fuel pump
- Air in the fuel system
- Defective injection pump
What you can do
- 1Check that the fuel system hoses and connections are intact and not letting air in
- 2If you have a diagnostic tool, read the fault code status and see whether the timing value differs from the desired value
- 3If the fault remains, have a workshop check the timing adjustment valve, the needle lift sensor and the pump setting
Symptoms you may notice3
- Engine warning lamp lit
- The engine feels sluggish
- The engine is difficult to start
What the fault can affect1
- EGR control is switched off
General guidance for car owners. Diagnosis on the car can point to a different cause.