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P0243, P0244

Read the instructions below then start the fault diagnostic procedure.

Symptom: CHECK ENGINE lamp on. Limp home. Loss of performance.

P0243, P0244


P0243 Boost Pressure Too High. Mechanical Fault

P0244 Boost Pressure Too Low. Mechanical Fault


Fault symptoms


CHECK ENGINE lamp on.

Limp home.

Loss of performance.


Note

Before starting fault diagnosis, see Erroneous generation of DTCs .


Conditions

The following conditions apply for this DTC:


Diagnosis is active at 2000 rpm and 25 mg fuel.

P0243 DTC is generated if the boost pressure is more than 26.5 kPa above the desired value for 4.5 seconds.

P0244 DTC is generated if the boost pressure is more than 26.5 kPa below the desired value for 4.5 seconds.


Diagnostic help

DTC indicates a mechanical fault in the turbo unit, air leakage between the turbo unit and intake manifold or in the vacuum system. There may also be a fault in the solenoid valve (boost pressure or swirl throttle).

Air leakage between the turbo unit and intake can cause the turbo unit to become damaged very quickly due to overrevving.