I own a skoda fabia VRS 55 reg, i was going along about 30 and lost power were the turbo usualy kicks in and the dreaded white smoke, i had the turbo changed with a recondisioned one, now im not getting white smoke but im not getting power and on the computer it says 17965 charge pressure control positive deviation, p1557 intermittent. any advise on were to go yet ????

taken from the Ross Tech Wiki site

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

taken from the Ross Tech Wiki site

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

thanx il get my machanic to try that hes stuck i dont want to take it to a expensive skoda garage yet