Re: 92 2.1 lean mixture - Saab 900 Bulletin Board - Saabnet.com
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Re: 92 2.1 lean mixture
Posted by Anders (more from Anders) on Wed, 24 Apr 2002 10:55:34
In Reply to: 92 2.1 lean mixture, steve, Wed, 24 Apr 2002 09:40:41
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The two most common problems on the 92 non T is airmassmeter or O2 sensor.
One other problem I have encountered is faulty injectors,(it didn't help to clean them)
And certainly vacuum leaks, but you have all that covered already?
You have a ground connection on left/front inner fender, that one works with engine managment too. Check it out.
Take the vacuum hose off the FPR and plug it, read the voltage meter at O2 sensor, if voltage starts to fluctuate you only have a minor lean condition, (the extra fuel pressure you give the injectors is enough to bring it up to specs) and it might be the AMM that is faulty.
posted by 66.134.55...
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