New v3.7 DI failures ... - Saab 9-5 Bulletin Board - Saabnet.com
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New v3.7 DI failures ...
Posted by dmz789qqq [Email] (more from dmz789qqq) on Sat, 9 Jun 2012 11:22:13
In Reply to: Re: Failing DI Cassette, Feah2136, Fri, 8 Jun 2012 13:11:28
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They seem to be P1312 and related - which is combustion detection circuitry. So the engine keeps running fine, it just does detect misfires very well. In principle, one can run indefinitely on DI like that - or at least utill the next car inspection. The previous version typically had the high voltage capacitor fail - that would immediately stop generating the spark and start dumping raw fuel/air mix down to the catalytic converter.
As for blinking vs. steady CEL - blinking mean only one thing - massive misfires that are almost guaranteed to damage catalytic converter. The steady CEL can mean all other 1000 things.
posted by 173.48.31...
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