warren9022
Registered User
This is my first post so be gentle.....
My S3 has been suffering with a lack of boost for a few months now, changed the usual suspects (N75, MAF etc). Pressure tested and no leaks. Did the rocker cover and cam tensioner gasket today so decided to strip everything back to get at the turbo. Turbo spins freely and has no play. As a last resort I disconnected the hose from the N75 to the waste gate actuator and went for a (very cautious) drive. Put my foot down in the higher gears and the boost started to surge but then stopped and started to judder like the boost was coming and going.
No fault codes show on the VAG COM.
Can anyone tell me what this points to please?
I've had the car for 13 years and she's like one of the family but like most family members at some point she's really testing my patience now!!
Thanks in advance.
My S3 has been suffering with a lack of boost for a few months now, changed the usual suspects (N75, MAF etc). Pressure tested and no leaks. Did the rocker cover and cam tensioner gasket today so decided to strip everything back to get at the turbo. Turbo spins freely and has no play. As a last resort I disconnected the hose from the N75 to the waste gate actuator and went for a (very cautious) drive. Put my foot down in the higher gears and the boost started to surge but then stopped and started to judder like the boost was coming and going.
No fault codes show on the VAG COM.
Can anyone tell me what this points to please?
I've had the car for 13 years and she's like one of the family but like most family members at some point she's really testing my patience now!!
Thanks in advance.