[s-cars] occasional slight over-overboost
JC
jc at j2c3.com
Sun Mar 29 17:07:22 PDT 2009
Tom - Actually, I'm not sure the WG spring IS the TAP version. Funny
business with the PO and the fact that it runs fairly normally with the
screw down a few turns makes me think it's OEM spring. (I've even had 1/2 a
mind to pop the ECU open and see if the PO even really left TAP chips in
there... I do have his receipt but there was sketch behavior with him for
sure and that wouldn't be out of the question)
And just to clarify - I have no MIL light on now - it just flashed for a
second once when I had the overboost condition. I would have pulled codes
already if my VAG-COM PC didn't have a dead battery meaning I have to dig up
and fire up the inverter to power it in the car...
>
> And, you have that "cranked WG spring" why, other than it
> came with the TAP chips? I would check out the WG. The
> spring can override boost protection if it is too tight--a
> sticky WG piston could alter how much spring tension is ok.
> It is a stronger spring to begin with, so cranked down can be
> too much.
>
> That MIL light blinking is a pretty good sign that DTCs are
> being stored in the ECU, but it should cut fuel if it thinks
> the boost is out of hand.
>
> Tom
>
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