Checking ignition timing

1993 CADILLAC FLEETWOOD
89,000 MILES • V8 • 2WD • AUTOMATIC
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DSTRKS80
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  • 1 POST
I'm trying to check the ignition timing but I can't figure out how to put the ignition system in bypass mode. It doesn't have a timing connector to disconnect like earlier chevy TBI engines. The underhood decal says to "ground the ignition bypass circuit" but it doesn't tell where the bypass circuit is. Where is the bypass circuit?
Apr 13, 2011 at 10:16 AM
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DOCFIXIT
  • ✓Experienced Mechanic
  • 18,828 POSTS
Hello,

Bypass in wiring right of throttle body see diagram. Check out the diagrams (Below). Please let us know if you need anything else to get the problem fixed.
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Apr 13, 2011 at 10:46 AM
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RORRO79
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  • 1 POST
how do you adjust the timing. I know how to do basicly everything. the only thing that i need to know is how to disconnect the idle advance. I know that older cars we would disconnect the vacumn going to the distributor.
Mar 4, 2019 at 10:18 AM (Merged)
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BLUELIGHTNIN6
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  • 16,542 POSTS


https://images.2carpros.com/forum/automotive_pictures/261618_Noname_2869.jpg


https://images.2carpros.com/forum/automotive_pictures/261618_Noname2_942.jpg

Mar 4, 2019 at 10:18 AM (Merged)
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