Hopefully my last TCS questions... Anders? - Saab 9000 Bulletin Board - Saabnet.com
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Hopefully my last TCS questions... Anders?
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Posted by Adrian (more from Adrian) on Thu, 18 Sep 2003 11:01:02 Share Post by Email
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So, I'm in permanent limp home mode. The only time is seems to work is after the car warms up, and you move the throttle with the limp home cable.

I tested the throttle body:
pin 1 to 7: 2ohms
pin 3 to 5, i can't remember the exact values, but it was the same as our other 9000
The pins for the potentiometer are what's strange.

On our other 9000, pin 2 to 4 is about .7-.800k ohms. 2 to 6 is about the same. 4 to 6 is about 200 ohms. (This is all with the throttle closed.)

On the bad 9000 it's .6m ohms between 2 and 4, 1k ohm between 2 and 6, and .6m ohm between 4 and 6. (Unfortunately these values are from memory.)

So I think the throttle is fried.

The question is how. I had it replaced about 3 months ago. Now I'm wondering whether it was calibrated at the time. The old throttle was actually fine, but I went for the updated version. I noticed that they didn't put the new gold connectors on, and I was having a problem where the car would overboost, and then the power would cut out momentarily. if I was using cruise, it would shut off the cruise control too. I didn't realise this might be related to the throttle being replaced, but i read that it might be.

The mechanic who put the throttle in is going to take another look, but when I told him my theory about it not being calibrated he said he thought it wouldn't work at all if it wasn't calibrated, and so he thought his guys must have calibrated it.

Is it possible or likely that it did work for awhile and then failed because it was not calibrated? Or are there other reasons this might happen? I've read that putting it on without calibrating it could burn up the wiring. Is this what people mean?

Thanks,
-Adrian

posted by 130.91.5...

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