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Re: 5KCSTQ Wastegate Springs (SMTP Id#: 197

> Date: Mon, 21 Aug 1995 09:48:30 -0400
> From: Nick Craft <ncc@scr.siemens.com>
> Cc: ncc@dano.scr.siemens.com
> >
> >I'll be posting details on UrQ ECU code (actually, "data") mods to al-
> >low higher boost/et al SometimeSoonNow(tm) [that's kinda sorta like a
> >watered-down RealSoonNow]. I've gotten the boost map, overboost cutoff,
> >cold engine warm up open loop map, and WOT open loop maps identified.
> >Hoards of hoary details will be forthcoming as I get it all sorted out
> >and translated into something vaguely resembling conversational English,
> >including info on adjustable-boost-control (heh heh -- my patent-pending
> >ShrapnelKnobben). I'm developing/debugging/field-testing mods now.
> >
> >					-RDH
> >
> Sounds neat! 
> I'll really look forward to seeing the results & burning a prom for myself
> using your data, Robert.
> Just wanted to give you some encouragement
> Nick.

I disassembled the prom for the '85 200tq I had a few years ago. The
goal was to inhibit the high boost cut-off. I never managed to
identify where that was done. I believe I still have the code lying
around if anyone cares.

I found something that I think was pretty neat. It seems to use the
tacho to signal errors! Different RPM readings meaning different

It also had two sets of maps. I believe one was for swiss anti
pollution regulation and one for other countries. It could also have
been for auto/manual trans. It was selected with a wire in the ECU
connector being present or not. This could be used for some other
input, like a switch to select a less brutal mode to be used when
someone else is driving the car.