I have a 1997 saab 9000 cse turbo rough idle when you first start. after 10 minutes the idle is fine I have cleaned the throttle body It seems to help a little

SOURCE: saab 9000 cse turbo

Hi Steve,
I had a similar problem on a full pressure SAAB 9000. With me it only happened under hard acceleration, and it was caused by the Waste Gate Controller being sticky and over-boosting the engine to the point where the overpressure switch came into play - this cuts out the engine till the pressure drops to a safe level again - hence the sudden loss of power. On the full pressure turbo's you get a boost gauge so you can see it happening, but I don't think the LPT's have one fitted - so its probably a garage job - otherwise Saab9000.com will show you how to test it yourself.

Regards

Hugh

SOURCE: stalling no idle

Hi,if you want to now where is a leak ,start the car if is possible and spry the hosing pipes wen suddenly rpm increase you now where is the problem or ken be the trottle body!

SOURCE: 97 Saab 9000 CSE Turbo,

dont do them up so tight then......1/2" play in longest stretch of belt between pulleys.