P0244
Read the instructions below then
start the fault diagnostic procedure.
Symptom: Loss of performance.
Boost Pressure too High. Mechanical Fault.
Fault symptoms
On-Board Diagnostics
Type of diagnosis:
Enable criteria:
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Battery voltage should be 10.2-15.8 V.
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Engine speed should be over 1700 rpm.
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Rpm changes between two measurements should not exceed a difference of 100 rpm.
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The difference between two injections should not exceed 5 mm
3
/C.
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EGR control should be 0%.
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Speed should be over 40 km/h.
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Injection quantity should be 20-60 mm
3
/C.
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Intake air temperature should be 20-90 °C.
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Atmospheric pressure should be 90-110 kPa.
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P1636 or P1637 should not be detected.
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These conditions should be fulfilled for 2.1 seconds before diagnostics run.
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Fault criteria:
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The difference between calculated and actual charge air pressure falls below -50 kPa.
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Dependents:
System reaction to a fault:
OK report:
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Fault criteria not fulfilled.
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Fault handling:
Diagnostic help
The fault diagnosis concerns the charge pressure system and its components.
Functions in the diagnostic tool related to the fault:
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Read value:
Airmass / Combustion,
Mass Air Flow Sensor,
Requested VNT Position,
Actual VNT Position,
Requested Charge Air Absolute Pressure, (
Charge Air Pressure Sensor)
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See also description of read value under
"Read Values" menu
for more information.
