89 900T cutting out at 1500, video link too! - Saab 900 Bulletin Board - Saabnet.com
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89 900T cutting out at 1500, video link too!
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Posted by scottinalaska (more from scottinalaska) on Sun, 12 Aug 2012 00:45:38 Share Post by Email
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Gentlemen. I have been out of Saabs for ten years and have returned again! I was a member of this site all through the nineties too!
This is a “repost” from a couple months ago, but I have some more info now. Thus, here is the review:
This 89 Saab 900T idles fine, but as soon as I bring up the RPM's, it cuts out. I cannot get it above 1500 RPM.
Fuel pressure is rock solid at 31psi and as I “rev” it unsuccessfully, the pressure will bounce up to around 38. When I release the throttle it immediately settles down to 31 psi.
Things I have replaced: MAF, APC, TPS, wires, plugs, cap, rotor. No vacuum leaks.
I have pulled each plug wire while it is running and seen a decrease in RPM. I have pulled each injector wire and noted a decrease in RPM. I have pinched off the fuel return line with no difference. Spark stays consistent when the cutout happens.
I believe the injectors are likely cutting out, but cannot be sure as my noid light is not an “inline” noid light.
With all of this info and the corporate brains out there, surely I can get closer to the solution!
Thanks,
Scott, in Alaska
And here is a link to the video of this cutting out.
http://www.youtube.com/watch?v=tXdC5miwGg0&feature=youtu.be


posted by 66.58.214...

cutout demo

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