okay- so... Replacing the fuel pump almost always means broken hard lines if the mechanic is not a saab-er. Occasionally, people use non-submersible fuel line. Both of these usually end in a total failure, not intermittent.

Alternatively, if the check-valves fail, it can take 2 cranks to fire-up a 9-5. The first is really just priming the lines that would normally be full of gas, but aren't. This is common, too.

The misfire at start-up is fairly common. my car's done it occasionally for years.
It's just the ECU trying to sync the cranks sensor and Ignition cassette.
let it idle for 30-seconds, and it'll run fine. a blip of the throttle can fix it, too.

If it's getting worse, it may be the crank sensor. When it's not starting, keep an eye on the tach. it should bounce a little while cranking. If it's not, the ECU isn't getting a CPS signal.

 

Thanks for reply.

The shop that did all the work on it with the fuel pump are saab specialists. They have done all the work on my familys Volvo's and Saab's in the past. I trust them that they did the right thing when they replaced the fuel pump. I have spoken with them on the phone and from my diagnosis to them they believe it is the Direct Ignition cassette. The Tach does register alittle RPMs when cranking.

There is no starting of it at all currently and when it misfired on start blipping the throttle had no effect of correcting.

Unfortunately I moved away from family so I am in the process of hunting a shop to do the work or at least diagnose the issue.

I am waiting to see what the shop I dropped it off at just now believes the problem is.

Again thank you for the reply.

 

Garage just called it is apparently the fuel pump... Maybe the first garage didn't replace fuel pump with the right line

 

Possibly. Or, they didn't use the right clamp.
Is it going back to the first shop? Seems they should warranty their work

 

If it's the cassette, it's a driveway fix. Just order the part and chuck 'er on

 

I have a 2002 9-5 Aero where all the fuel in the rail evacuates back into the tank over night. Takes quite a bit to start it in the AM. The check valves are less than a year old PPS. Kinda butthurt about it.