Hope you guys can help me out again..
I hired a TT Convertible and as a result, my A3 has been parked up for 3 days in my nans garage.
Took it out and some twit in a corsa started tailgating so booted it and the revs rose and then the car went into limp mode.
Put the car into Neutral, switched the ignition off and on and car went back to normal.
The car was stone cold and I've never put my foot down on cold before...
Got home and put the car on Vagcom and this is what came up:
16618 - Boost Pressure Regulation: Limit Exceeded (Overboost Condition)
P0234 - 000 - -
RPM: 3591 /min
Torque: 316.0 Nm
Speed: 76.0 km/h
Load: 91.8 %
Voltage: 14.21 V
Bin. Bits: 00101000
Absolute Pres.: 2172.6 mbar
Absolute Pres.: 2590.8 mbar
Readiness: 0 0 0 0 0
I cleared the fault, and took the car for a spin. I let it warm in and then drove it relatively hard (well, harder than i usually drive it when driving quick) and she was fine - No faults at all.
First thoughts - There was a seal i didn't change when i replaced the intake manifold as i replaced it 2 weeks earlier when i cleaned it...think that might be letting air in causing the turbo to over-boost.
2) I've not aligned the throttle body after changing it? Does anyone know how to do it - i have Vagcom.
The car also idles abit rough sometimes when cold...
Sorry for the lengthy post and Any help will be greatly appreciated !!