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Date: Thu, 20 May 2004 11:25:39 -0400
From: "Fred W." <Fred.Willsnospampam myrealbox.com>
Subject: Re: 9-3 Aero boost problem


"Tomnospamtech" <saabtechnospamnnect.com> wrote in message news:c8i4uj$bc8$1nospamta.btinternet.com... > > "David Wilson" <david.wilsonnospame.pipex.com> wrote in message > news:40ac7b67$0$20517$cc9e4d1fnospam-text.dial.pipex.com... > > One for all you hi-tech people! > > Car is an Oct 2001 9-3 Aero HOT Coupe (UK). > > Last night it stopped - full set of master warning lights and a horrid > > electrical burning smell under the bonnet. AA patrol looked at it, > sniffed, > > and said "coil pack". Replaced the DI cassette that sits between the cam > > covers. (Obviously not a rare problem - he was carrying one!) > > Engine starts fine, no more lights, no more smell. > > But..... Very little turbo boost (needle goes part way into the orange > > band and holds steady under full throttle in any gear.) > > Local dealership checked the computer system this morning - no fault > found. > > Suggested I go away and see if it clears itself. I'm not at all > convinced. > > Anybody got any clues ? > > > > David Wilson > > > I am surprised that the dealer gave you that advice, But try this: If you > can find a clear road with an incline on it approach it at about 2500 rpm in > 4th gear and plant the throttle and hold it as long as it is safe to do so, > the car will relearn the maximum boost pressure, you may need to carry this > out a few times. If you live somewhere flat like Holland or the Utah salt > flats then you can simulate load by leftfoot braking, but this is not as > successful as when the footbrake is applied the max boost pressure is > lowered. HTH, Tom, Saabtech. [Independant Saab specialist] > Tom, Are you sure that will work? I was under the impression that the APC controller monitors the brake light switch and reduces to base boost during braking. -Fred W

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