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Spark problem Audi v8 92
01/09/2007 15:54
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When i got the car it was hard to start, and after a one month i wont start at all. there is no spark, but the start engine works.! ( Sorry for my english) 
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b homburg
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Reged: 19/08/2002
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Posts: 765
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Loc: Strasbourg, Frankreich
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Did you check the fault codes stored in the ECU? That`s what I`d do first. Check here on how to do that or, if you have a laptop, invest in the VAG-COM diagnostic software and an adapter that will fit the V8.
Can you rule out a malfunctioning immobilzer/anti-theft system?
How do the plugs look like?
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Bastian P.
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Reged: 18/08/2002
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Posts: 13274
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Loc: Österreich (Graz)
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Re: Spark problem Audi v8 92
[re: b homburg]
01/09/2007 23:38
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Hi,
the engine starter won't turn if the anti-theft system is engaged, as far as I know. If there is no spark on all plugs and it's hard to impossible to readout the ECU fault codes (but the Audi dealer should be able to handle this) I'd try to exchange both the flywheel sensor and the ignition point sensor (OT) on hit or miss. It's the most usual fault if there is no spark at engine start.
Good luck
Bastian
Das Buch zum Audi V8
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