LMAO Finn I use the dyno to help diagnose my problems, and sure enough it was the maf... i recently cut the saab maf out and wired in a GM maf because they are very very easily attainable at a scrap yard here from thousands of different gm cars. and due to the different harness, i had to cut the saab one out and put a new one in... well turns out one of the few mass airflow sensors i had, is bad... it just so happened this was the one i had on the car when i did my FMIC install, and for whatever reason since then the car ran less boost and ran really shoddy...
Well friday on the dyno i had a loss of about 20hp, whne i was expecting a gain of 10-20hp... from the raised boost levels of the smbc install... i came home and put in a maf off an ls1 that i had just purchased, which turned out to be different, but it also proved a point. Lately wiht that broken maf that i had my car had a lean spot, and it turned out to be the old maf sensor. So when i discovered this i put in another one i had lying around and sure enough no lean spot, and my car boosts 9-10psi without the smbc installed instead of 6-7psi. It is great. Now i need to set the smbc lower because the car is boosting 14psi.
What is my point in all this?? Well a while back i read on another saab board about people with Viggens and 9-3's having boost issues and it turned out when they put in a new MAF, it solved all their problems... I recently changed the front o2 sensor and the cps sensor only to find that my car ran the same until i changed the maf. Tomorrow another trip to the dealer to return the ls1 maf and get a regular gm one if they let me return it
