Date: Mon, 21 Jan 2002 19:38:39 +0100 From: "Dieter Anders" <huibuhextranopsamo.de> Subject: Re: APC-Problem: Pressure too high
Thanks a lot for a the good hints. I had to learn a couple of things about my car: There is only one ECU (electronic control unit) whatsoever in the 1996 Saab - controlling both fuel and the airflow. All my valves and pipes were fine. First I suspected the hooter valve (the typical noise was missing very often). Then I almost thought having found the fault in the APC-Valve...NOPE! The dealer changed the ECU - no success. Finally it was the DI-cassette. Sometimes it worked, sometimes not. Even my garage was not able to reproduce the fault - until I demonstrated it. So, simple but expensive fault. Too bad they couldnĄt find the fault in the memory...! "D.Anders" <D.Andersnopsamrmail.de> schrieb im Newsbeitrag news:3C26FC3F.FBD8D6BAnopsamrmail.de... > I have a problem with my APC-system. It shows as follows: when "pushing > the pedal to the floor", the > APC-needle is wandering into the red range and finally the fuel-flow > seems to be interrupted > (performance is intermittent-or in other words: the engine is jerking). > The dealer did minor works with > no success, then the car came into the garage for the inspection > (110.000 km). The dealer couldnĄt > reproduce the fault but I could immediately after having driven the > engine hot. So they changed the > control unit (located in front of the glove-compartement). It seemed to > solve the problem during the > first day. The "jerking" happened only once during full throttle, the > APC-needle left in the yellow range > and my idle problems (rpm not stable, moving up and down until sometimes > the engine dies) didnĄt show > up anymore. After driving some 100 km on the road the problem is almost > as bad as before. > > 1. Is it possible to upgrade the control unit (as flashing a BIOS)? > 2. Does anyone has similar problems and / or know how to fix it? > > > Merry Christmas / Froehliche Weihnachten!!! > > > Dieter Anders > > > Saab R 900 ( equipement as 900 SE) > 1996 > 111.000 km > 2.0 turbo >
 |
 |
 |
 |
 |
