Date: Tue, 17 Feb 2004 09:45:19 -0500
From: KeithG <>
Subject: Re: 88 900S, code interpretation

12111 is an o2 sensor adaptation fault - throttle open. Does the light illuminate at idle or while running? Does it run better at idle or under power? First, make sure that the idle switch is adjusted properly. Then, make sure that there is no vacuum leak. Look at hoses, fittings, etc. when it runs rough, can you tell if it is rich or lean? This would help. How old is the O2 sensor? This would not cause a bucking condition, though. KeithG Art wrote: > Greetings all: I am a non mechanic, so would appreciate help in this one. > Brief history, I have an 88 900S which was running great. All of a sudden, > the check engine light would come on, and the car ran terribly. The light > would go off, and the car ran well again. It was intermittent, but started > happening more and more. My SAAB mechanic diagnosed a bad air mass meter, > but after replacing it, he said that a new code showed up in the computer. > The code is 12111, which has something to do with the computer itself. He > tried to explain it to me, but I couldn't follow everything he was saying, > except that it sounds like a major problem if the symptoms of this code > number start to appear. > > Could anybody tell me what this means in terms of the seriousness of the > repair associated with this particuliar code. I would appreciate it! > > Thanks > > Art > >

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