Update on '94 Aero with high NOx - Saab 9000 Bulletin Board - Saabnet.com
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Update on '94 Aero with high NOx
Posted by BenT [Email] (more from BenT) on Thu, 1 Nov 2007 08:07:16
In Reply to: '94 Aero with high NOx and somewhat reduced power, BenT, Wed, 31 Oct 2007 08:16:00
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Since we last met, I've tried a couple of things :
First, I swapped the Air Intake Temp sensor for a known good unit (from my '92)
Second, I ran a bottle of STP fuel injector cleaner through the car. Does anyone have a recommendation for a really good injector cleaner? I just grabbed this one because it was convenient.
Finally, I pulled the plugs and looked at them. The Anode (the little curved strip of metal) was coated in a whitish/yellowish powder, but the cathode (the metal point in the center of the plug) was clean. These plugs have less than 1,000 miles on them.
Overall, there's been a slight improvement. I can tell I have a bit more kick in the pants when boosting now. However, it's still rather difficult to get started in the morning, with a wildly swinging idle when starting in the morning. It seems to only happen on the first start of the day. At that time of the morning, the outside air temp is ~40 degrees F.
posted by 151.151.73...
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