Howdy Jim,

Any other thoughts?

Why, yes, I have a few. ;-)

You have pretty much exhausted the free advice resources and thrown some pretty expensive parts at the problem. All the information sources you mentioned that "don't have a clue" probably do have a clue, but no data.

It is well nigh impossible to isolate a problem without test data. Sure, there are common failure items that cause this symptom or another. But, if the problem is not common, throwing common failure parts at it will be frustrating and expensive. Without test data no one at IPD or the Brickboard or over at Turbobricks or at the local Burger Barn can tell you what is wrong with your K-Jet.

You could take the car to a diagnostic shop and help them pay for all the tools and test equipment it takes to run a multi-marque diagnostic facility.

Or, you can acquire the specifications, tools, and methodology necessary to gather the data yourself.

I like the second option. But I have no way of knowing your background or ability to work on your car. So, the call is up to you. Here is the best advice I can offer:

Visit K-jet.org to get the Green Books for your car. Then, ease over to this Saab owner's web site to get the Bosch manuals for K-jet. Read each of them like a novel. Then go back and read them again, reference back and forth, and make notes. Once you have a pretty fair idea of how the system works you can do the checks necessary to isolate the problem.

Do you have a fuel pressure gauge setup for the CI system? If you need a gauge, this one that Lucid has posted links for several times is the best deal available.

Most of the other tools necessary to work on K-Jet are usually in a DIY mechanic's tool chest. There are a few exceptions. One is the injector test rig. If you find it necessary to test the injector opening pressure, I think a viable work around can be devised using a garden sprayer or shop air to pressurize a container. I haven't tried it yet. I think I will, just to see if I can make it work.

Another tool you are not likely to have is a CO meter. That it a tuning tool, not a troubleshooting aid. It is certainly nice to have. But you can get the car running at least 95% efficient without it. I am chasing down a CO meter now. If I can get one for a reasonable price, I will report it to the Brickboard.

If you are looking for an easy or quick fix, I don't have the magic bullet. The only way I know to isolate the problem is to analyse the test results.

Good luck. And, let us know how it goes.

--
Mr. Shannon DeWolfe -- (I've taken to using Mr. because my name tends to mislead folks on the WWW. I am a 52 year old fat man ;-) -- KD5QBL