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Too low fuel level generates diagnostic trouble code P1149

Symptom: CHECK ENGINE lamp on Engine in Limp Home. A/C relay closed (the cooling does not work)

Too low fuel level generates diagnostic trouble code P1149

Fault symptom

CHECK ENGINE lamp on

Engine in Limp Home.

A/C relay closed (the cooling does not work)

Criteria

Injection setting is incorrect. Injection takes place too late.

Diagnostic help

One or more of the trouble codes have been set due to incorrect software version.

Procedure

Diagnostic trouble code P1149 occurs in many cases because air has entered into the fuel line due to the fuel level in the tank being too low. It can also be due to leakage in the fuel system. Consequently the following fault diagnosis is carried out:


1. Find out whether the car has been driven until out of fuel on the latest occasion. Check the fuel level and fill if necessary.

Clear the diagnostic trouble code and test drive the car. If the fault remains then continue with the following.

2. Check the camshaft setting. See Checking the camshaft and fuel pump setting

3. Check for any leaks in the system, see Fault diagnosis with long starting times, diesel .

4. If the problem is not resolved, replace Diesel pump with control module .