Hello Fellow Saabers,

I'm Mike, and this is my first post here on TSN (although I've been lurking for a while). Just felt I should introduce myself before getting into the good stuff.

I just flew to Georgia to pick up an '87 900 SPG because I live in central NY and couldn't find any without the dreaded A-arm mount rust. Anyway I drove her 953 miles back to Ithaca last night and am glad to say I arrived without any problems.

Now, the seller claimed that the boost was "turned way down". I just assumed there was a problem with the turbo or regulatory system and he was giving me the run-around, but the price was right for an OG900 with a rust-free body/frame. So before I go looking into a rebuilt kit or switching out the turbo, I thought I would ask about how to determine the root cause of the problem.

Here's all the relevant background I can provide:
On the drive back the car would start to enter boost, and the needle would get to about 1/3 to 1/2 of the way along the yellow part of the gauge, and stop.

This morning I thought I would do a quick check and see if the wastegate was the culprit, so I disconnected the hose from the solenoid to the wastegate, started the car up, and now the needle won't enter the yellow part at all.

I connected the hose back up and started the car, expecting the needle to go 1/3 to 1/2 of the way up the yellow part of the gauge. Unfortunately, it did exactly what it did when the hose was disconnected.

Any thoughts? Did I screw something major up? What might I do next to make my 900 turbo actually a turbo?

Thanks for any help,
Mike
Current:
'87 SPG

Past:
'87 900t

posted by 67.244.61...

• Greetings and Weak Boost (long-ish), Mike Riley, Sun, 30 May 2010 17:54:22 <-- Viewing This Message
  • Re: Greetings and Weak Boost (long-ish), Mog406, Wed, 2 Jun 2010 04:03:52
  • Lots to get through here, but start with the simple, nicknick , Sun, 30 May 2010 18:15:26
    • Re: Lots to get through here, but start with the simple, Mike Riley, Sun, 30 May 2010 18:55:25
      • Re: Lots to get through here, but start with the simple, vsfoxe , Sun, 30 May 2010 20:50:24
        • Thanks vsfoxe! Exactly what i meant. Also, timing is, nicknick , Sun, 30 May 2010 21:27:51

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