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porscheski924
Joined: 08 Oct 2007
Posts: 11
Location: Roscoe,IL
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 Posted: Sun Dec 02, 2007 5:32 pm Post subject: Missing??? |
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i changed plugs,wire, cap,and rotor and it still feels like it misses. could vaccum lines cause it to so that also??
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1979 924 completly stock |
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gohim
Joined: 02 Nov 2002
Posts: 4459
Location: Rialto, CA
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| Posted: Sun Dec 02, 2007 8:55 pm Post subject: |
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In a word, YES...
A leaking vacuum line could cause a lean mixture, or the wrong ignition timing, or wrong idle speed.
Don't start twisting the idle speed, mixture, or timing adjustment untill you replace all of the vacuum lines if they haven't been replaced in the past five years. |
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!tom
Joined: 28 Aug 2006
Posts: 1941
Location: Victoria, BC Canada
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| Posted: Tue Dec 04, 2007 3:19 am Post subject: |
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A miss could also be caused by a dirty/clogged fuel filter, if the miss is happening at times of high fuel demand.
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78 924 NA
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924 FAQ (Technical)
