Date: Mon, 28 Aug 2000 19:31:10 +0100 From: J <johsnopsamsafish.com> Subject: Re: 9000 Aero Problem
Dave Speed wrote: > > 1995 9000 Aero > 40 K miles > > Driving west out of San Antonio, TX on I-10 > Ambient temp 94 deg F; full tank of fuel. > > 75 mph / 2500 rpm in 5th gear pulling up a long hill; showing > just a little boost on the turbo, as I opened the throttle, the > engine cut out, then picked back up. > > Did it again a little later and the engine died. Coasted to a stop > and it started right back up. Continued on. > > Later (+ 300 mi) in the trip, with an ambient of 98 deg F, I had a > similar cutout when I tried to pull strongly at 85+ mph on the flat. > (Fuel tank was now only 1/4 full). > > My guess is a marginal fuel pump not suppling sufficient pressure/flow > for the demand. > > Runs fine otherwise. > > Other suggeastions? Could also be due to the waste gate valve sticking. If the valve does not open as required for overboost, then some mechanism cuts out the engine. With respect to the DI, if there is a problem here then it may start as occasional cut outs, but this gets progressively worse over a week or so until it goes completely dead. Johannes
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