Stalling at idle when warm, poor mileage - Saab NG900 & OG9-3 Bulletin Board - Saabnet.com
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Stalling at idle when warm, poor mileage
Posted by BobN [Email] (more from BobN) on Thu, 19 Nov 2015 04:02:32
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Our '99 9-3 SE with 256K miles has a new problem in the last two weeks. Once it has warmed up, it stalls at idle, seems down on power, and has about 15% worse fuel economy than normal.
I'd been getting the 133 code for the O2 sensor for months and replaced that last week. Now there are no codes but the poor behavior continues.
The air filter looks pretty nasty and I'll buy a new one tonight. What else I should look for in case that doesn't solve the problem? We have been running 87 octane to save money - perhaps spark retard is a contributing factor?
Thank you.
posted by 71.62.63...
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