Boost control issue? log inside...

[S3 Paul]

My car for a while now can spike boost higher that i think it should... it only happens in low gear ( so sorry its a short log ) and only if ive been driving part throttle then nail it... I tried to log it last night... just to see what its asking for when it does it...
Major problems?????

The car shows no fault codes and drives fine other than the gauge/ vag com showing numbers i think are too high.

 

[<tuffty/>]

Warmer weather will make the ECU up the duty cycle to meet load requests and more boost is the result... what is your gauge showing?

Oddly actual boost is showing pretty much MAP sensor limit at 3.8k even though its not being requested... thats some overrun of boost lol... have you tried capping with an MBC or tried another N75 to see if either of those make a difference?

<tuffty/>

 

[S3 Paul]

Not as of yet. The boost gauge will go round to 28 psi but drop to 22 ish after a second or two.
Im thinking maybe N75 or a MBC, just they are expensive if its not that .