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wcc wcc is offline
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I am 99% certain the high pitch sound you are hearing is the fuel pump. That is normal. My '87 930 makes the same noise. The joys of CIS!

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Bill
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Old 05-02-2006, 08:58 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #21 (permalink)
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ah, great. i thought so-thanks for the insight.
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Old 05-02-2006, 09:02 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #22 (permalink)
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Its the whine of the CDI module. Is it coming from your speakers?
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Old 05-02-2006, 09:05 AM
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wcc wcc is offline
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Yes, I should have just said that the sound is normal instead of saying it is the pump. But thanks for correcting me as to the CDI. I just know that the sound is normal and nothing to worry about.
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Old 05-02-2006, 09:10 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #24 (permalink)
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what is the CDI? i'm almost 100% sure it was coming from my back speakers when they were hooked up as i lifted the speaker out and held it to my ear...but once disconnected, the sound could be traced to the engine bay. kinda strange.
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78 930
84 R5 T2
04 Suby Outback
"it's a mystery, wrapped in a riddle, inside an enigma" Winston Churchill.
Old 05-02-2006, 09:10 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #25 (permalink)
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by the way, what book should i pick up to learn more about the CIS?
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78 930
84 R5 T2
04 Suby Outback
"it's a mystery, wrapped in a riddle, inside an enigma" Winston Churchill.
Old 05-02-2006, 09:11 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #26 (permalink)
 
wcc wcc is offline
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It's Capacitor Discharge Ignition (CDI)

EDIT: I think there are some good books out there. Do a search here and I bet you'll find TONS of info. I would like to learn more about CIS also.

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Last edited by wcc; 05-02-2006 at 09:18 AM..
Old 05-02-2006, 09:16 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #27 (permalink)
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