In the case of selecting a turbine housing with a small area for the purpose of supplementing the lack of torque, the gasoline engine may create knocking in high speed. This device secures a solution to prevent this type of problem, where the exhaust gas is by passed at the turbine entrance that restraints the turbine revolution and provides the most suitable boost pressure.
The ECM monitors the learning value of the vacuum pressure control in order to operate the waste-gate actuator and if its value is over a certain allowed range,this DTC P0244 is set up.
Item
Detecting Condition
Possible Cause
DTC Strategy
Plausibility check
Waste gate valve
Enable Conditions
engine operating state out start
Threshold Value
case 1
100hPa < pressure charge air adaptation< -100hPa
case 2
280hPa < pressure up threttle adaptation< -280hPa
Diagnostic Time
immediately
MIL On Condition
2 Driving cycles
Specification
Coil Resistance (?)
28.3 ~ 31.1 (20?)