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17965 - Charge Pressure Control: Positive Deviation P1557 - 35-10 - - - Intermittent.
What might this refer to?
The car has been smoking and will run into overboost limp if pused hard, but gives this reading even with easy normal driving.
Using Gendan with 409.1 software - I hope this is the correct forum.
17965/P1557/005463 - Charge Pressure Control: Positive Deviation
Possible Symptoms
Reduced power output
Limp mode
Possible Causes
Boost Pressure too High
Hoses/Pipes incorrect connected, disconnected, blocked or leaking
Charger Pressure Control defective
VNT (variable nozzle turbo): nozzles stuck
Solenoid Valve for Boost Pressure Control (N75) defective
Possible Solutions
Check Hoses/Pipes to/between Components
Check Solenoid Valve for Boost Pressure Control (N75)
Check / Clean / Replace Charge Pressure Control
Check / Clean mechanism for variable nozzles
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