P0244

Read the instructions below then start the fault diagnostic procedure.

Symptom: Loss of performance.

P0244

Fault symptoms

•	Loss of performance.

On-Board Diagnostics

Type of diagnosis:

-	Continuous.

Enable criteria:

-	Battery voltage should be 10.2-15.8 V.

-	Engine speed should be over 1700 rpm.

-	Rpm changes between two measurements should not exceed a difference of 100 rpm.

-	The difference between two injections should not exceed 5 mm 3 /C.

-	EGR control should be 0%.

-	Gear engaged.

-	Speed should be over 40 km/h.

-	Injection quantity should be 20-60 mm 3 /C.

-	Intake air temperature should be 20-90 °C.

-	Atmospheric pressure should be 90-110 kPa.

-	P1636 or P1637 should not be detected.

-	These conditions should be fulfilled for 2.1 seconds before diagnostics run.

Fault criteria:

-	The difference between calculated and actual charge air pressure falls below -50 kPa.

Dependents:

-

None.

System reaction to a fault:

-

None

OK report:

-	Fault criteria not fulfilled.

Fault handling:

-	Fault handling III, other emissions-related components and functions

Diagnostic help

The fault diagnosis concerns the charge pressure system and its components.

Functions in the diagnostic tool related to the fault:

-	Read value: Airmass / Combustion, Mass Air Flow Sensor, Requested VNT Position, Actual VNT Position, Requested Charge Air Absolute Pressure, ( Charge Air Pressure Sensor)

See also description of read value under "Read Values" menu for more information.