The car: 2003 Saab 9-5 Linear turbo - manual transmission - 192k miles
When turbo boost pressure gets close to the red under acceleration - either with high rpm: 3rd gear/50mph and max throttle OR low rpm: 6th gear / 45mph and max throttle - engine cuts out abruptly, and ‘stutters’ until you ease off the gas.
Check engine light is triggered if it isn’t already on, which it usually is. O
Please help. This same question has been asked on several other car/Saab boards, but I still haven’t found anyone who has solved it.