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S70 Idle problems S70

posted by  KlausC on  Fri Apr 10 17:16 CST 2009
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last visit: Fri Oct 24 10:15 CST 2014
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You are running super rich. If you pull a spark plug, you should find it nice and black.
I would question if the fuel pressure regulator is working. It is vacuum controlled, with the vacuum line going to the intake manifold. If you unplug the line, make sure there is no gasoline present.
Insufficent vacuum at idle will also make things worse. Is there any unmetered air getting through a cracked vacuum line?
If this is a turbo, check the vacuum line that goes into the air intake just before the turbo. There is a nipple that can get clogged, try to clean it out - it is a pain to reach.
Are the spark plugs gapped at .028? What kind of spark plugs are you using?

EDIT:

Start a new thread: P0300, P1119, p1670
Give the web site for the definitions and that you have a new AMM.

--
My name is Klaus and I am a V ♂ lv ♂ holic.






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New S70 Idle problems [S70]
posted by  jdparker69  on Sun Feb 8 15:23 CST 2009 >


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