Ok Guys so this is where im at i have replaced Battery, alternator, cps, bov, 3 sets of spark plugs ( Double platnium, platnium, and copper just to see.) I have a genuine saab DI checked the fuel filter clean as can be. All started with change of fuel brands. Fuel pump is make a swissing sound does crank does start will die immediately or run lacking power. Once car gets into power band or i put foot down immediate hesitation and car dies car will sit and idle great with no issue. I was told its the throttle body i checked the gear it is not in limp mode. The plugs in the picture below are 2 weeks old and ran in the broken DI they are full of soot. Car was not running right at all at that time. I feel its the pump just saying its done and can only handle low rpm and pushing enough fuel through to limp it along. Has anyone had similar experiences or does my diagnoses sound correct that the pump is already shot and its last leg.