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over boost

  1. 9-5 Performance, Mods & Tuning
    Hi All I will try and explain what is happening with my 9-5 Aero 2.3t estate, stage 1 noobtune. The car had been underpowered for some time I believe so a few months ago I tried the bolt mod, and since then I have had tire shredding boost. At first it was completely untameable, until I changed...
  2. C900 Workshop
    Howdy, In the process of diagnosing my turbo's lack of boost (base only) I plugged the wastegate actuator hose and went for a drive. I saw that I could boost to a full 10 psi (presumably more if I wanted to kill the engine), but if I boosted to anything above 7 psi or so I would hear a knock...
  3. 9-5 Workshop
    Could a Broken Bypass Valve cause an over boost? Hello, this is my first Saab and first Post so bare with me please. 3 weeks ago I bought my 2000 Saab 9-5 aero estate 2.3t After putting it through Diagnostics it showed P110 (Bypass Valve) and P1304 (Misfire) My mechanic noticed that the waste...
  4. NG900 & OG9-3 Workshop
    Good morning all, I have an appointment with a SAAB specialist to get this issue checked out, but before I do I'd like an idea of what I might be up against... The issue with my '99 9-3S (T5) is that the wastegate is chronically sticking. It is the wastegate itself and not the actuator that is...
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