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Checking ignition timing

Tiny
DSTRKS80
  • MEMBER
  • 1993 CADILLAC FLEETWOOD
  • V8
  • 2WD
  • AUTOMATIC
  • 89,000 MILES
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?
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Wednesday, April 13th, 2011 AT 5:16 PM

3 Replies

Tiny
DOCFIXIT
  • 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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Wednesday, April 13th, 2011 AT 5:46 PM
Tiny
RORRO79
  • MEMBER
  • 1 POST
  • 1991 CADILLAC FLEETWOOD
  • V8
  • FWD
  • AUTOMATIC
  • 150,000 MILES
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.
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Monday, March 4th, 2019 AT 6:18 PM (Merged)
Tiny
BLUELIGHTNIN6
  • MECHANIC
  • 16,542 POSTS


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



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

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Monday, March 4th, 2019 AT 6:18 PM (Merged)

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