AudiSportB5S4

My neighbor has a AWE Stage 3 with a custom tune, but the car was tuned in FL., its now in CT... There is obviously something going on with the boost, I was thinking along N75. What do you think? N75 DC goes nuts right when the boost spikes past.. Car has a FMIC, AWE OTS Fueling (tweaked), etc. TIA FOR REPLIES .

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audiKP

did you preasure test?

S40RCE:Smurf

boost leak?

Syrus5o

I don't think it's a boost leak because it holds pretty well till red line. During normal driving the boost levels feel fine.
(my car)

TwentyValveB5+S4

yeah, probably N75, although the tune may be over-reacting that little bit of negative deviation

Syrus5o

overall do the logs look ok? I'm new to taking logs. I'm trying to make sense out of them.

TwentyValveB5+S4

also, have you disconnected the ECU at all recently? unplugging it for 10mins or so can reset some long-term adaptation maps and can result in lower CFs &amp; better timing.

what octane was it tuned for and what are you on now?

DVS27t

not marc ehrenberg for those that might be wondering.

Syrus5o

The ecu was disconnected a few months ago, thats it. I started hitting the throttle around 2k

Syrus5o

yes this is marc's old car. We traded cars in september.