Help Needed Leon FR Fault Code 17964

[trashed]

Hey everyone. My 55 plate Leon FR has developed a major fault. It's lost all power and won't boost at all. Noticed a couple of weeks ago that it had a bit of what could only be described as a mis-fire when accelerating hard. On thursday when travelling home from work, I pulled out to overtake and there was nothing there as if in limp mode. Friday morning I started it up and it was running fine then friday night when I left work it died again.

I've had it plugged in on a mates laptop and found Fault code:

17964 Charge pressure control,
P1556 - 35 - 00,
Negative Deviation.

I've had a look around the engine and can't see any signs of anything out of the ordinary, There's no obvious leaks when revving or anything.

Has anyone else suffered the same problems? If so could you give me a clue as what to look at?? Any help would be greatly appreciated!!

 

[Bondiblu]

http://www.seatcupra.net/forums/showthread.php?t=360069

 

[trashed]

I've checked over most of the threads that people on here have posted, however there doesn't seem to be anyone who has the problem permanent. All seem to be intermittant faults where mine is a continuos problem!!

 

[Bondiblu]

The below should still apply

Possible Causes
Boost Pressure too Low
Hoses/Pipes incorrect connected, disconnected 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

 

[trashed]

Turned out to be the N75. Local VAG specialist sorted it on saturday. Cost £115 for valve and fitting. Cheers for the help!!